diff --git a/jeecg-boot-platform/jeecg-boot-module-bpm-flowable/src/main/java/org/jeecg/modules/extbpm/process/controller/ExtActProcessNodeController.java b/jeecg-boot-platform/jeecg-boot-module-bpm-flowable/src/main/java/org/jeecg/modules/extbpm/process/controller/ExtActProcessNodeController.java
index 966df5b..f711f9d 100644
--- a/jeecg-boot-platform/jeecg-boot-module-bpm-flowable/src/main/java/org/jeecg/modules/extbpm/process/controller/ExtActProcessNodeController.java
+++ b/jeecg-boot-platform/jeecg-boot-module-bpm-flowable/src/main/java/org/jeecg/modules/extbpm/process/controller/ExtActProcessNodeController.java
@@ -257,12 +257,10 @@ public class ExtActProcessNodeController {
 		queryWrapper.eq(ExtActProcessNodeDeployment::getDeploymentId, processDefinition.getDeploymentId());
 		ExtActProcessNodeDeployment node = extActProcessNodeDeploymentService.getOne(queryWrapper);
 		if(node!=null&&oConvertUtils.isNotEmpty(node.getModelAndView())) {
-			//节点地址表达式解析
-			defautformUrl = BpmUtil.getNodeUrl(variablesMap, node.getModelAndView(), dataId);
+			defautformUrl = resolveNodeFormUrl(defautformUrl, node.getModelAndView(), variablesMap, dataId);
 		}
 		if(node!=null&&oConvertUtils.isNotEmpty(node.getModelAndViewMobile())) {
-			//节点地址表达式解析
-			defautformUrlMobile = BpmUtil.getNodeUrl(variablesMap, node.getModelAndViewMobile(), dataId);
+			defautformUrlMobile = resolveNodeFormUrl(defautformUrlMobile, node.getModelAndViewMobile(), variablesMap, dataId);
 		}
 
 		//b.获取节点权限配置
@@ -480,9 +478,7 @@ public class ExtActProcessNodeController {
 			ExtActProcessNodeDeployment node = extActProcessNodeDeploymentService.getOne(queryWrapper);
 			if(node!=null&&oConvertUtils.isNotEmpty(node.getModelAndView())) {
 				formUrl =  node.getModelAndView();
-				//节点地址表达式解析
-				formUrl = BpmUtil.getNodeUrl(variablesMap, formUrl, dataId);
-				defautformUrl = formUrl;
+				defautformUrl = resolveNodeFormUrl(defautformUrl, formUrl, variablesMap, dataId);
 			}
 			
 			List<Map<String,Object>> permissionList = new ArrayList<Map<String,Object>>();
@@ -519,6 +515,86 @@ public class ExtActProcessNodeController {
 		
 		return result;
 	}
+
+	private String resolveNodeFormUrl(String instanceFormUrl, String nodeFormConfig, Map<String, Object> variablesMap, String dataId) {
+		String resolvedNodeFormUrl = BpmUtil.getNodeUrl(variablesMap, nodeFormConfig, dataId);
+		if (oConvertUtils.isEmpty(resolvedNodeFormUrl)) {
+			return instanceFormUrl;
+		}
+		String trimmedNodeFormUrl = resolvedNodeFormUrl.trim();
+		if (!isQueryOnlyFormConfig(trimmedNodeFormUrl)) {
+			return trimmedNodeFormUrl;
+		}
+		if (oConvertUtils.isEmpty(instanceFormUrl)) {
+			return instanceFormUrl;
+		}
+		// 共用节点只配置办理参数时，保留业务发起时的表单组件路径，节点参数只补充缺失项。
+		return appendMissingQueryParams(instanceFormUrl, stripQueryPrefix(trimmedNodeFormUrl));
+	}
+
+	private boolean isQueryOnlyFormConfig(String formUrl) {
+		return formUrl.startsWith("?") || formUrl.startsWith("&");
+	}
+
+	private String stripQueryPrefix(String query) {
+		String result = query;
+		while (result.startsWith("?") || result.startsWith("&")) {
+			result = result.substring(1);
+		}
+		return result;
+	}
+
+	private String appendMissingQueryParams(String formUrl, String appendQuery) {
+		if (oConvertUtils.isEmpty(appendQuery)) {
+			return formUrl;
+		}
+		String existQuery = getQueryString(formUrl);
+		String filteredQuery = filterNewQueryParams(existQuery, appendQuery);
+		if (oConvertUtils.isEmpty(filteredQuery)) {
+			return formUrl;
+		}
+		return formUrl + getQueryJoiner(formUrl) + filteredQuery;
+	}
+
+	private String getQueryJoiner(String formUrl) {
+		if (formUrl.endsWith("?") || formUrl.endsWith("&")) {
+			return "";
+		}
+		return formUrl.contains("?") ? "&" : "?";
+	}
+
+	private String getQueryString(String url) {
+		int queryIndex = url == null ? -1 : url.indexOf("?");
+		if (queryIndex < 0 || queryIndex == url.length() - 1) {
+			return "";
+		}
+		return url.substring(queryIndex + 1);
+	}
+
+	private String filterNewQueryParams(String existQuery, String appendQuery) {
+		Set<String> existKeys = new HashSet<>();
+		if (oConvertUtils.isNotEmpty(existQuery)) {
+			for (String param : existQuery.split("&")) {
+				if (oConvertUtils.isEmpty(param)) {
+					continue;
+				}
+				int eqIndex = param.indexOf("=");
+				existKeys.add(eqIndex >= 0 ? param.substring(0, eqIndex) : param);
+			}
+		}
+		List<String> appendParams = new ArrayList<>();
+		for (String param : appendQuery.split("&")) {
+			if (oConvertUtils.isEmpty(param)) {
+				continue;
+			}
+			int eqIndex = param.indexOf("=");
+			String key = eqIndex >= 0 ? param.substring(0, eqIndex) : param;
+			if (!existKeys.contains(key)) {
+				appendParams.add(param);
+			}
+		}
+		return String.join("&", appendParams);
+	}
 	
 	private List<BizTaskDTO> getBizTaskDTOs(List<Task> userTaskList,List<Task> groupTaskList,ProcessInstance processInstance){
 		List<BizTaskDTO> bizTaskList = new ArrayList<BizTaskDTO>();