diff --git a/be/src/pipeline/dependency.cpp b/be/src/pipeline/dependency.cpp
index f4094ef440ffef..5fef018423df25 100644
--- a/be/src/pipeline/dependency.cpp
+++ b/be/src/pipeline/dependency.cpp
@@ -106,16 +106,6 @@ std::string RuntimeFilterDependency::debug_string(int indentation_level) {
     return fmt::to_string(debug_string_buffer);
 }
 
-Dependency* RuntimeFilterDependency::is_blocked_by(PipelineTask* task) {
-    std::unique_lock<std::mutex> lc(_task_lock);
-    auto ready = _ready.load();
-    if (!ready && task) {
-        _add_block_task(task);
-        task->_blocked_dep = this;
-    }
-    return ready ? nullptr : this;
-}
-
 void RuntimeFilterTimer::call_timeout() {
     _parent->set_ready();
 }
diff --git a/be/src/pipeline/dependency.h b/be/src/pipeline/dependency.h
index 9441b8ce09c004..7035ed681a61f9 100644
--- a/be/src/pipeline/dependency.h
+++ b/be/src/pipeline/dependency.h
@@ -276,8 +276,6 @@ class RuntimeFilterDependency final : public Dependency {
             : Dependency(id, node_id, name), _runtime_filter(runtime_filter) {}
     std::string debug_string(int indentation_level = 0) override;
 
-    Dependency* is_blocked_by(PipelineTask* task) override;
-
 private:
     const IRuntimeFilter* _runtime_filter = nullptr;
 };
diff --git a/be/src/pipeline/pipeline.h b/be/src/pipeline/pipeline.h
index 98e52ec5271613..b969186b178bf7 100644
--- a/be/src/pipeline/pipeline.h
+++ b/be/src/pipeline/pipeline.h
@@ -44,8 +44,7 @@ class Pipeline : public std::enable_shared_from_this<Pipeline> {
     friend class PipelineFragmentContext;
 
 public:
-    explicit Pipeline(PipelineId pipeline_id, int num_tasks,
-                      std::weak_ptr<PipelineFragmentContext> context, int num_tasks_of_parent)
+    explicit Pipeline(PipelineId pipeline_id, int num_tasks, int num_tasks_of_parent)
             : _pipeline_id(pipeline_id),
               _num_tasks(num_tasks),
               _num_tasks_of_parent(num_tasks_of_parent) {
@@ -86,7 +85,9 @@ class Pipeline : public std::enable_shared_from_this<Pipeline> {
 
     std::vector<std::shared_ptr<Pipeline>>& children() { return _children; }
     void set_children(std::shared_ptr<Pipeline> child) { _children.push_back(child); }
-    void set_children(std::vector<std::shared_ptr<Pipeline>> children) { _children = children; }
+    void set_children(std::vector<std::shared_ptr<Pipeline>> children) {
+        _children = std::move(children);
+    }
 
     void incr_created_tasks(int i, PipelineTask* task) {
         _num_tasks_created++;
diff --git a/be/src/pipeline/pipeline_fragment_context.cpp b/be/src/pipeline/pipeline_fragment_context.cpp
index bd45016adf51e6..76d9c347c387fa 100644
--- a/be/src/pipeline/pipeline_fragment_context.cpp
+++ b/be/src/pipeline/pipeline_fragment_context.cpp
@@ -215,7 +215,6 @@ PipelinePtr PipelineFragmentContext::add_pipeline(PipelinePtr parent, int idx) {
     PipelineId id = _next_pipeline_id++;
     auto pipeline = std::make_shared<Pipeline>(
             id, parent ? std::min(parent->num_tasks(), _num_instances) : _num_instances,
-            std::dynamic_pointer_cast<PipelineFragmentContext>(shared_from_this()),
             parent ? parent->num_tasks() : _num_instances);
     if (idx >= 0) {
         _pipelines.insert(_pipelines.begin() + idx, pipeline);
diff --git a/be/src/pipeline/task_scheduler.h b/be/src/pipeline/task_scheduler.h
index 6fc6ad8d6f2e48..4caceca20d4a44 100644
--- a/be/src/pipeline/task_scheduler.h
+++ b/be/src/pipeline/task_scheduler.h
@@ -36,17 +36,14 @@
 namespace doris {
 class ExecEnv;
 class ThreadPool;
-
-namespace pipeline {
-class TaskQueue;
-} // namespace pipeline
 } // namespace doris
 
 namespace doris::pipeline {
+class TaskQueue;
 
 class TaskScheduler {
 public:
-    TaskScheduler(ExecEnv* exec_env, std::shared_ptr<TaskQueue> task_queue, std::string name,
+    TaskScheduler(std::shared_ptr<TaskQueue> task_queue, std::string name,
                   CgroupCpuCtl* cgroup_cpu_ctl)
             : _task_queue(std::move(task_queue)),
               _shutdown(false),
diff --git a/be/src/runtime/exec_env_init.cpp b/be/src/runtime/exec_env_init.cpp
index ff6205bf55e5d0..1c6f6e5cf2cae3 100644
--- a/be/src/runtime/exec_env_init.cpp
+++ b/be/src/runtime/exec_env_init.cpp
@@ -383,7 +383,7 @@ Status ExecEnv::init_pipeline_task_scheduler() {
     // TODO pipeline workload group combie two blocked schedulers.
     auto t_queue = std::make_shared<pipeline::MultiCoreTaskQueue>(executors_size);
     _without_group_task_scheduler =
-            new pipeline::TaskScheduler(this, t_queue, "PipeNoGSchePool", nullptr);
+            new pipeline::TaskScheduler(t_queue, "PipeNoGSchePool", nullptr);
     RETURN_IF_ERROR(_without_group_task_scheduler->start());
 
     _runtime_filter_timer_queue = new doris::pipeline::RuntimeFilterTimerQueue();
diff --git a/be/src/runtime/workload_group/workload_group.cpp b/be/src/runtime/workload_group/workload_group.cpp
index 0488e9ec83c6c2..84016132da9b5a 100644
--- a/be/src/runtime/workload_group/workload_group.cpp
+++ b/be/src/runtime/workload_group/workload_group.cpp
@@ -470,8 +470,8 @@ void WorkloadGroup::upsert_task_scheduler(WorkloadGroupInfo* tg_info, ExecEnv* e
         }
         auto task_queue = std::make_shared<pipeline::MultiCoreTaskQueue>(executors_size);
         std::unique_ptr<pipeline::TaskScheduler> pipeline_task_scheduler =
-                std::make_unique<pipeline::TaskScheduler>(exec_env, std::move(task_queue),
-                                                          "Pipe_" + tg_name, cg_cpu_ctl_ptr);
+                std::make_unique<pipeline::TaskScheduler>(std::move(task_queue), "Pipe_" + tg_name,
+                                                          cg_cpu_ctl_ptr);
         Status ret = pipeline_task_scheduler->start();
         if (ret.ok()) {
             _task_sched = std::move(pipeline_task_scheduler);