diff --git a/backend/pom.xml b/backend/pom.xml
index ac48ac2c..4bc6af70 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -225,6 +225,11 @@
 <!--            <artifactId>flowable-spring-boot-starter-rest</artifactId>-->
 <!--            <version>${flowable.version}</version>-->
 <!--        </dependency>-->
+        <dependency>
+            <groupId>com.networknt</groupId>
+            <artifactId>json-schema-validator</artifactId>
+            <version>1.0.86</version>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/workflow/entity/WorkflowDefinition.java b/backend/src/main/java/com/qqchen/deploy/backend/workflow/entity/WorkflowDefinition.java
index e91da303..05549518 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/workflow/entity/WorkflowDefinition.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/workflow/entity/WorkflowDefinition.java
@@ -54,6 +54,18 @@ public class WorkflowDefinition extends Entity<Long> {
     @Column(name = "graph_json", columnDefinition = "json")
     private JsonNode graphJson;
 
+    /**
+     * 表单配置JSON
+     * 包含：
+     * - 流程级别的表单配置
+     * - 流程变量定义
+     * - 表单验证规则
+     * - 表单布局配置
+     */
+    @Type(JsonType.class)
+    @Column(name = "form_config", columnDefinition = "json")
+    private JsonNode formConfig;
+
     @Column(nullable = false)
     @Enumerated(EnumType.STRING)
     private WorkflowStatusEnums status;
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java b/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java
index 6c02ad7c..5165fbe4 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/workflow/service/impl/WorkflowDefinitionServiceImpl.java
@@ -71,7 +71,7 @@ public class WorkflowDefinitionServiceImpl extends BaseServiceImpl<WorkflowDefin
     @Transactional(rollbackFor = Exception.class)
     public WorkflowDefinitionDTO saveWorkflowDesign(WorkflowDefinitionDTO dto) throws Exception {
         // 转换图形JSON为BPMN XML
-        String bpmnXml = bpmnConverter.convertToBpmnXml(dto.getGraphJson().toString(), dto.getKey());
+        String bpmnXml = bpmnConverter.convertToBpmnXml(dto.getGraphJson(), dto.getKey());
 
         dto.setFlowVersion(1);
         dto.setBpmnXml(bpmnXml);
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/workflow/util/JsonSchemaValidator.java b/backend/src/main/java/com/qqchen/deploy/backend/workflow/util/JsonSchemaValidator.java
new file mode 100644
index 00000000..2f4bce5f
--- /dev/null
+++ b/backend/src/main/java/com/qqchen/deploy/backend/workflow/util/JsonSchemaValidator.java
@@ -0,0 +1,39 @@
+package com.qqchen.deploy.backend.workflow.util;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.networknt.schema.JsonSchema;
+import com.networknt.schema.JsonSchemaFactory;
+import com.networknt.schema.SpecVersion;
+import com.networknt.schema.ValidationMessage;
+import com.qqchen.deploy.backend.framework.exception.BusinessException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Slf4j
+@Component
+public class JsonSchemaValidator {
+    private final JsonSchemaFactory factory = JsonSchemaFactory.getInstance(SpecVersion.VersionFlag.V7);
+    
+    /**
+     * 验证JSON数据是否符合Schema
+     */
+    public void validate(JsonNode data, JsonNode schema) {
+        try {
+            JsonSchema jsonSchema = factory.getSchema(schema);
+            Set<ValidationMessage> errors = jsonSchema.validate(data);
+            
+            if (!errors.isEmpty()) {
+                String errorMessages = errors.stream()
+                    .map(ValidationMessage::getMessage)
+                    .collect(Collectors.joining(", "));
+                throw new IllegalStateException("JSON Schema validation failed: " + errorMessages);
+            }
+        } catch (Exception e) {
+            log.error("JSON Schema validation error", e);
+            throw new IllegalStateException("JSON Schema validation error: " + e.getMessage());
+        }
+    }
+} 
\ No newline at end of file
diff --git a/backend/src/main/resources/db/migration/V1.0.0__init_schema.sql b/backend/src/main/resources/db/migration/V1.0.0__init_schema.sql
index c519ba4f..ea3df333 100644
--- a/backend/src/main/resources/db/migration/V1.0.0__init_schema.sql
+++ b/backend/src/main/resources/db/migration/V1.0.0__init_schema.sql
@@ -399,6 +399,7 @@ CREATE TABLE workflow_definition (
     graph_json  JSON COMMENT 'x6 JSON内容',
 	status      VARCHAR(32) NOT NULL COMMENT '状态',
     description VARCHAR(255) NULL COMMENT '流程描述',
+    form_config JSON COMMENT '表单配置JSON',
     
     CONSTRAINT UK_workflow_definition_key_version UNIQUE (`key`, flow_version)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='工作流定义表';