diff --git a/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowInstanceServiceImpl.java b/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowInstanceServiceImpl.java
index f46fafe8..d8b30eac 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowInstanceServiceImpl.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowInstanceServiceImpl.java
@@ -186,11 +186,18 @@ public class WorkflowInstanceServiceImpl extends BaseServiceImpl<WorkflowInstanc
     public WorkflowInstanceDTO startWorkflow(WorkflowInstanceStartRequest request) {
         try {
             WorkflowDefinition workflowDefinition = workflowDefinitionRepository.findByKey(request.getProcessKey()).orElseThrow(() -> new RuntimeException("Workflow definition process key not found: " + request.getProcessKey()));
+            
+            // ✅ 将前端传入的 variables 包装到 "form" 变量中
+            // 这样流程中的 ${form.xxx} 表达式就能正确解析
+            Map<String, Object> variables = new HashMap<>();
+            if (request.getVariables() != null && !request.getVariables().isEmpty()) {
+                variables.put("form", request.getVariables());
+            }
+            
             ProcessInstance processInstance = runtimeService.createProcessInstanceBuilder()
                 .processDefinitionKey(request.getProcessKey())
-                .variables(request.getVariables())
+                .variables(variables)  // 使用包装后的变量
                 .businessKey(request.getBusinessKey())
-                .variables(request.getVariables())
                 .startAsync();  // 异步启动，会自动执行 shell 任务
 //                .start();
             return createWorkflowInstance(workflowDefinition.getId(), request.getBusinessKey(), processInstance);