diff --git a/routers/web/projects/workflows.go b/routers/web/projects/workflows.go
index 80cf363384..1ec8f2940c 100644
--- a/routers/web/projects/workflows.go
+++ b/routers/web/projects/workflows.go
@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"strconv"
+	"strings"
 
 	"code.gitea.io/gitea/models/db"
 	issues_model "code.gitea.io/gitea/models/issues"
@@ -132,11 +133,26 @@ func convertFormToActions(formActions map[string]any) []project_model.WorkflowAc
 					}
 				}
 			}
+		case "issueState":
+			if strValue, ok := value.(string); ok {
+				switch strings.ToLower(strValue) {
+				case "close", "closed", "true":
+					actions = append(actions, project_model.WorkflowAction{
+						Type:  project_model.WorkflowActionTypeClose,
+						Value: "close",
+					})
+				case "reopen", "open", "false":
+					actions = append(actions, project_model.WorkflowAction{
+						Type:  project_model.WorkflowActionTypeClose,
+						Value: "reopen",
+					})
+				}
+			}
 		case "closeIssue":
 			if boolValue, ok := value.(bool); ok && boolValue {
 				actions = append(actions, project_model.WorkflowAction{
 					Type:  project_model.WorkflowActionTypeClose,
-					Value: "true",
+					Value: "close",
 				})
 			}
 		}
@@ -172,17 +188,17 @@ func WorkflowsEvents(ctx *context.Context) {
 	}
 
 	type WorkflowConfig struct {
-		ID             int64                                   `json:"id"`
-		EventID        string                                  `json:"event_id"`
-		DisplayName    string                                  `json:"display_name"`
-		BaseEventType  string                                  `json:"base_event_type"`  // Base event type for grouping
-		WorkflowEvent  string                                  `json:"workflow_event"`   // The actual workflow event
-		Capabilities   project_model.WorkflowEventCapabilities `json:"capabilities"`
-		Filters        []project_model.WorkflowFilter          `json:"filters"`
-		Actions        []project_model.WorkflowAction          `json:"actions"`
-		FilterSummary  string                                  `json:"filter_summary"` // Human readable filter description
-		Enabled        bool                                    `json:"enabled"`
-		IsConfigured   bool                                    `json:"isConfigured"` // Whether this workflow is configured/saved
+		ID            int64                                   `json:"id"`
+		EventID       string                                  `json:"event_id"`
+		DisplayName   string                                  `json:"display_name"`
+		BaseEventType string                                  `json:"base_event_type"` // Base event type for grouping
+		WorkflowEvent string                                  `json:"workflow_event"`  // The actual workflow event
+		Capabilities  project_model.WorkflowEventCapabilities `json:"capabilities"`
+		Filters       []project_model.WorkflowFilter          `json:"filters"`
+		Actions       []project_model.WorkflowAction          `json:"actions"`
+		FilterSummary string                                  `json:"filter_summary"` // Human readable filter description
+		Enabled       bool                                    `json:"enabled"`
+		IsConfigured  bool                                    `json:"isConfigured"` // Whether this workflow is configured/saved
 	}
 
 	outputWorkflows := make([]*WorkflowConfig, 0)
diff --git a/services/projects/workflow_notifier.go b/services/projects/workflow_notifier.go
index 614ea87c0a..812c9f5bd2 100644
--- a/services/projects/workflow_notifier.go
+++ b/services/projects/workflow_notifier.go
@@ -6,6 +6,7 @@ package projects
 import (
 	"context"
 	"strconv"
+	"strings"
 
 	issues_model "code.gitea.io/gitea/models/issues"
 	project_model "code.gitea.io/gitea/models/project"
@@ -424,9 +425,22 @@ func executeWorkflowActions(ctx context.Context, workflow *project_model.Workflo
 				continue
 			}
 		case project_model.WorkflowActionTypeClose:
-			if err := issue_service.CloseIssue(ctx, issue, user_model.NewProjectWorkflowsUser(), ""); err != nil {
-				log.Error("CloseIssue: %v", err)
-				continue
+			if strings.EqualFold(action.Value, "reopen") || strings.EqualFold(action.Value, "false") {
+				if issue.IsClosed {
+					if err := issue_service.ReopenIssue(ctx, issue, user_model.NewProjectWorkflowsUser(), ""); err != nil {
+						log.Error("ReopenIssue: %v", err)
+						continue
+					}
+					issue.IsClosed = false
+				}
+			} else {
+				if !issue.IsClosed {
+					if err := issue_service.CloseIssue(ctx, issue, user_model.NewProjectWorkflowsUser(), ""); err != nil {
+						log.Error("CloseIssue: %v", err)
+						continue
+					}
+					issue.IsClosed = true
+				}
 			}
 		default:
 			log.Error("Unsupported action type: %s", action.Type)
diff --git a/web_src/js/components/projects/ProjectWorkflow.vue b/web_src/js/components/projects/ProjectWorkflow.vue
index 9f056b00c1..36b623c726 100644
--- a/web_src/js/components/projects/ProjectWorkflow.vue
+++ b/web_src/js/components/projects/ProjectWorkflow.vue
@@ -978,13 +978,20 @@ onUnmounted(() => {
                 </div>
 
                 <div class="field" v-if="hasAction('close')">
-                  <div v-if="isInEditMode" class="form-check">
-                    <input type="checkbox" v-model="store.workflowActions.closeIssue" id="close-issue">
-                    <label for="close-issue">Close issue</label>
-                  </div>
+                  <label for="issue-state-action">Issue state</label>
+                  <select
+                    v-if="isInEditMode"
+                    id="issue-state-action"
+                    class="form-select"
+                    v-model="store.workflowActions.issueState"
+                  >
+                    <option value="">No change</option>
+                    <option value="close">Close issue</option>
+                    <option value="reopen">Reopen issue</option>
+                  </select>
                   <div v-else class="readonly-value">
-                    <label>Close issue</label>
-                    <div>{{ store.workflowActions.closeIssue ? 'Yes' : 'No' }}</div>
+                    {{ store.workflowActions.issueState === 'close' ? 'Close issue' :
+                       store.workflowActions.issueState === 'reopen' ? 'Reopen issue' : 'No change' }}
                   </div>
                 </div>
               </div>
@@ -1024,6 +1031,7 @@ onUnmounted(() => {
   background: white;
   display: flex;
   flex-direction: column;
+  min-height: 0;
 }
 
 /* Sidebar */
@@ -1164,6 +1172,7 @@ onUnmounted(() => {
   flex: 1;
   display: flex;
   flex-direction: column;
+  min-height: 0;
 }
 
 .editor-header {
@@ -1202,6 +1211,7 @@ onUnmounted(() => {
   flex: 1;
   padding: 1.5rem;
   overflow-y: auto;
+  min-height: 0;
 }
 
 .editor-content .field {
diff --git a/web_src/js/components/projects/WorkflowStore.ts b/web_src/js/components/projects/WorkflowStore.ts
index 2cc129cd3c..f7009a8cca 100644
--- a/web_src/js/components/projects/WorkflowStore.ts
+++ b/web_src/js/components/projects/WorkflowStore.ts
@@ -8,11 +8,13 @@ type WorkflowFiltersState = {
   labels: string[];
 };
 
+type WorkflowIssueStateAction = '' | 'close' | 'reopen';
+
 type WorkflowActionsState = {
   column: string;
   add_labels: string[];
   remove_labels: string[];
-  closeIssue: boolean;
+  issueState: WorkflowIssueStateAction;
 };
 
 type WorkflowDraftState = {
@@ -21,7 +23,7 @@ type WorkflowDraftState = {
 };
 
 const createDefaultFilters = (): WorkflowFiltersState => ({issue_type: '', column: '', labels: []});
-const createDefaultActions = (): WorkflowActionsState => ({column: '', add_labels: [], remove_labels: [], closeIssue: false});
+const createDefaultActions = (): WorkflowActionsState => ({column: '', add_labels: [], remove_labels: [], issueState: ''});
 
 const cloneFilters = (filters: WorkflowFiltersState): WorkflowFiltersState => ({
   issue_type: filters.issue_type,
@@ -33,7 +35,7 @@ const cloneActions = (actions: WorkflowActionsState): WorkflowActionsState => ({
   column: actions.column,
   add_labels: Array.from(actions.add_labels),
   remove_labels: Array.from(actions.remove_labels),
-  closeIssue: actions.closeIssue,
+  issueState: actions.issueState,
 });
 
 export function createWorkflowStore(props: {projectLink: string, eventID: string}) {
@@ -112,7 +114,7 @@ export function createWorkflowStore(props: {projectLink: string, eventID: string
           // Convert backend filter format to frontend format
         const frontendFilters = {issue_type: '', column: '', labels: []};
          // Convert backend action format to frontend format
-        const frontendActions = {column: '', add_labels: [], remove_labels: [], closeIssue: false};
+        const frontendActions: WorkflowActionsState = {column: '', add_labels: [], remove_labels: [], issueState: ''};
 
         if (workflow?.filters && Array.isArray(workflow.filters)) {
           for (const filter of workflow.filters) {
@@ -137,7 +139,11 @@ export function createWorkflowStore(props: {projectLink: string, eventID: string
                 // Backend returns string, keep as string to match label.id type
                 frontendActions.remove_labels.push(action.value);
               } else if (action.type === 'close') {
-                frontendActions.closeIssue = action.value === 'true';
+                if (action.value === 'reopen' || action.value === 'false') {
+                  frontendActions.issueState = 'reopen';
+                } else if (action.value === 'true' || action.value === 'close') {
+                  frontendActions.issueState = 'close';
+                }
               }
             }
           }
@@ -153,7 +159,11 @@ export function createWorkflowStore(props: {projectLink: string, eventID: string
               // Backend returns string, keep as string to match label.id type
               frontendActions.remove_labels.push(action.value);
             } else if (action.type === 'close') {
-              frontendActions.closeIssue = action.value === 'true';
+              if (action.value === 'reopen' || action.value === 'false') {
+                frontendActions.issueState = 'reopen';
+              } else if (action.value === 'true' || action.value === 'close') {
+                frontendActions.issueState = 'close';
+              }
             }
           }
         }
@@ -252,7 +262,7 @@ export function createWorkflowStore(props: {projectLink: string, eventID: string
           // Convert backend data to frontend format and update form
           // Use the selectedWorkflow which now points to the reloaded workflow with complete data
           const frontendFilters = {issue_type: '', column: '', labels: []};
-          const frontendActions = {column: '', add_labels: [], remove_labels: [], closeIssue: false};
+          const frontendActions: WorkflowActionsState = {column: '', add_labels: [], remove_labels: [], issueState: ''};
 
           if (store.selectedWorkflow.filters && Array.isArray(store.selectedWorkflow.filters)) {
             for (const filter of store.selectedWorkflow.filters) {
@@ -275,7 +285,11 @@ export function createWorkflowStore(props: {projectLink: string, eventID: string
               } else if (action.type === 'remove_labels') {
                 frontendActions.remove_labels.push(action.value);
               } else if (action.type === 'close') {
-                frontendActions.closeIssue = action.value === 'true';
+                if (action.value === 'reopen' || action.value === 'false') {
+                  frontendActions.issueState = 'reopen';
+                } else if (action.value === 'true' || action.value === 'close') {
+                  frontendActions.issueState = 'close';
+                }
               }
             }
           }