diff --git a/sermant-injector/deployment/release/injector/templates/sermant-injector-configmap.yaml b/sermant-injector/deployment/release/injector/templates/sermant-injector-configmap.yaml
index 15796a079e..b00e73dea5 100644
--- a/sermant-injector/deployment/release/injector/templates/sermant-injector-configmap.yaml
+++ b/sermant-injector/deployment/release/injector/templates/sermant-injector-configmap.yaml
@@ -10,12 +10,16 @@ data:
   SERMANT_AGENT_CONFIG_TYPE: {{ .Values.config.type }}
   # 配置中心地址
   SERMANT_AGENT_CONFIG_ADDRESS: {{ .Values.config.endpoints }}
+  # 注册中心类型
+  SERMANT_AGENT_SERVICE_TYPE: {{ .Values.registry.type }}
   # 注册中心地址
   SERMANT_AGENT_SERVICE_ADDRESS: {{ .Values.registry.endpoints }}
   # agent镜像地址
   SERMANT_AGENT_IMAGE_ADDR: {{ .Values.agent.image.addr }}
   # agent镜像拉取策略
   SERMANT_AGENT_IMAGE_PULLPOLICY: {{ .Values.agent.image.pullPolicy }}
+  # injector注入行为
+  SERMANT_AGENT_INJECT_ACTION: {{ .Values.injector.action }}
   {{- if not (and .Values.configMap.enabled .Values.configMap.namespaces) }}
   SERMANT_AGENT_CONFIGMAP: ""
   {{- end }}
\ No newline at end of file
diff --git a/sermant-injector/deployment/release/injector/values.yaml b/sermant-injector/deployment/release/injector/values.yaml
index 91f5feb550..133fc3bfff 100644
--- a/sermant-injector/deployment/release/injector/values.yaml
+++ b/sermant-injector/deployment/release/injector/values.yaml
@@ -1,8 +1,10 @@
 namespace:
-  # injector部署的namespace(注意: 必须和certificate.sh中的namespace保持一致)
+  # injector部署的namespace
   name: default
 
 injector:
+  # 当宿主应用已存在JAVA_TOOL_OPTIONS变量时，injector的注入行为，before为在原变量前注入（默认），after为在原变量后注入，ignore为不注入
+  action: before
   # 实例数
   replicas: 2
   image:
@@ -24,8 +26,11 @@ config:
   # 配置中心类型: ZOOKEEPER/KIE
   type: ZOOKEEPER
   # 配置中心地址
-  endpoints: http://localhost:30110
+  endpoints: http://localhost:2181
+
 registry:
+  # 注册中心类型：SERVICE_COMB/NACOS
+  type: SERVICE_COMB
   # 注册中心地址
   endpoints: http://localhost:30100
 
diff --git a/sermant-injector/src/main/java/com/huaweicloud/sermant/injection/controller/SermantInjectorController.java b/sermant-injector/src/main/java/com/huaweicloud/sermant/injection/controller/SermantInjectorController.java
index 407d2e2789..8e51ce1f36 100644
--- a/sermant-injector/src/main/java/com/huaweicloud/sermant/injection/controller/SermantInjectorController.java
+++ b/sermant-injector/src/main/java/com/huaweicloud/sermant/injection/controller/SermantInjectorController.java
@@ -210,6 +210,9 @@ public class SermantInjectorController {
     @Value("${sermant-agent.service.type:SERVICE_COMB}")
     private String serviceType;
 
+    @Value("${sermant-agent.inject.action:before}")
+    private String action;
+
     /**
      * 准入控制器接口
      *
@@ -452,7 +455,12 @@ private void injectEnv(ArrayNode arrayNode, Map<String, String> env, JsonNode co
         if (containerNode.hasNonNull(ENV_PATH)) {
             Iterator<JsonNode> elements = containerNode.path(ENV_PATH).elements();
             while (elements.hasNext()) {
-                envArray.add(elements.next());
+                JsonNode next = elements.next();
+
+                // JAVA_TOOL_OPTIONS以injector注入为准
+                if (!JVM_OPTIONS_KEY.equals(next.get(NAME_KEY).asText())) {
+                    envArray.add(next);
+                }
             }
         }
 
@@ -460,11 +468,8 @@ private void injectEnv(ArrayNode arrayNode, Map<String, String> env, JsonNode co
         String realMountPath = getNotEmptyValue(env, ENV_MOUNT_PATH_KEY, mountPath, value -> value);
 
         // jvm启动命令
-        String jvmOptions = JVM_OPTIONS_VALUE_PREFIX + realMountPath + JVM_OPTIONS_VALUE_SUFFIX;
-        String envJvmOptions = env.get(JVM_OPTIONS_KEY);
-        if (StringUtils.hasText(envJvmOptions)) {
-            jvmOptions = jvmOptions + envJvmOptions;
-        }
+        String jvmOptions = getJavaToolOptions(JVM_OPTIONS_VALUE_PREFIX + realMountPath + JVM_OPTIONS_VALUE_SUFFIX,
+            env.get(JVM_OPTIONS_KEY));
 
         // 注入jvm启动命令
         addEnv(envArray, JVM_OPTIONS_KEY, jvmOptions);
@@ -489,6 +494,19 @@ private void injectEnv(ArrayNode arrayNode, Map<String, String> env, JsonNode co
         }
     }
 
+    private String getJavaToolOptions(String injectOptions, String originOptions) {
+        if (!StringUtils.hasText(originOptions)) {
+            return injectOptions;
+        }
+        if ("after".equalsIgnoreCase(action)) {
+            return originOptions + injectOptions;
+        }
+        if ("ignore".equalsIgnoreCase(action)) {
+            return originOptions;
+        }
+        return injectOptions + originOptions;
+    }
+
     private void injectVolumeMounts(ArrayNode arrayNode, Map<String, String> env, JsonNode containerNode,
                                     String containerPath) {
         // 向容器新增volumeMounts节点
diff --git a/sermant-injector/src/main/resources/application.yml b/sermant-injector/src/main/resources/application.yml
index 983c3585f7..0629fcd796 100644
--- a/sermant-injector/src/main/resources/application.yml
+++ b/sermant-injector/src/main/resources/application.yml
@@ -34,6 +34,9 @@ sermant-agent:
     address: http://localhost:30100
   # sermant-agent 配置环境变量的configMap的名字
   configMap: sermant-agent-env
+  inject:
+    # 当宿主应用已存在JAVA_TOOL_OPTIONS变量时，sermant的注入行为，before为在原变量前注入（默认），after为在原变量后注入，ignore为不注入
+    action: before
 
 management:
   endpoint: