diff --git a/damocles-worker/src/config.rs b/damocles-worker/src/config.rs
index 6823abeb2..a2dbdfb89 100644
--- a/damocles-worker/src/config.rs
+++ b/damocles-worker/src/config.rs
@@ -210,8 +210,8 @@ pub struct Processors {
     /// section for unseal processor
     pub unseal: Option<Vec<Ext>>,
 
-    /// section for fetch processor
-    pub wdpost: Option<Vec<Ext>>,
+    /// section for window_post processor
+    pub window_post: Option<Vec<Ext>>,
 }
 
 impl Processors {
diff --git a/damocles-worker/src/run.rs b/damocles-worker/src/run.rs
index bcaeb416c..9dcfb324f 100644
--- a/damocles-worker/src/run.rs
+++ b/damocles-worker/src/run.rs
@@ -313,7 +313,7 @@ fn start_processors(cfg: &config::Config, locks: &Arc<resource::Pool>) -> Result
 
     let unseal: processor::ArcUnsealProcessor = construct_sub_processor!(unseal, cfg, locks);
 
-    let wdpost: processor::ArcWdPostProcessor = construct_sub_processor!(wdpost, cfg, locks);
+    let window_post: processor::ArcWdPostProcessor = construct_sub_processor!(window_post, cfg, locks);
 
     Ok(GlobalProcessors {
         add_pieces,
@@ -325,7 +325,7 @@ fn start_processors(cfg: &config::Config, locks: &Arc<resource::Pool>) -> Result
         snap_prove,
         transfer,
         unseal,
-        wdpost,
+        window_post,
     })
 }
 
diff --git a/damocles-worker/src/sealing/sealing_thread/planner/wdpost.rs b/damocles-worker/src/sealing/sealing_thread/planner/wdpost.rs
index 911ed78dd..6558257ab 100644
--- a/damocles-worker/src/sealing/sealing_thread/planner/wdpost.rs
+++ b/damocles-worker/src/sealing/sealing_thread/planner/wdpost.rs
@@ -8,7 +8,7 @@ use crossbeam_channel::{bounded, Receiver, Sender};
 use jsonrpc_core::ErrorCode;
 use jsonrpc_core_client::RpcError;
 use tokio::runtime::Handle;
-use vc_processors::builtin::tasks::{PoStReplicaInfo, WindowPoSt, WindowPoStOutput};
+use vc_processors::builtin::tasks::{PoStReplicaInfo, WindowPoSt, WindowPoStOutput, STAGE_NAME_WINDOW_POST};
 
 use crate::logging::warn;
 use crate::rpc::sealer::{AllocatePoStSpec, AllocatedWdPoStJob, SectorID};
@@ -337,6 +337,8 @@ impl WdPost<'_> {
     }
 
     fn generate(&self) -> Result<WdPostEvent, Failure> {
+        let _token = self.job.sealing_ctrl.ctx().global.limit.acquire(STAGE_NAME_WINDOW_POST).crit()?;
+
         let wdpost_job = self.job.wdpost_job.as_ref().context("wdpost info not found").abort()?;
 
         let mut instances = HashMap::new();
@@ -410,7 +412,7 @@ impl WdPost<'_> {
             replicas: replica,
             seed: wdpost_job.input.seed,
         };
-        let res = self.job.sealing_ctrl.ctx().global.processors.wdpost.process(post_in);
+        let res = self.job.sealing_ctrl.ctx().global.processors.window_post.process(post_in);
         if let Err(e) = &res {
             tracing::error!(err=?e, job_id=wdpost_job.id,"wdpost error");
         }
diff --git a/damocles-worker/src/watchdog.rs b/damocles-worker/src/watchdog.rs
index 3a6e09b48..9728cd725 100644
--- a/damocles-worker/src/watchdog.rs
+++ b/damocles-worker/src/watchdog.rs
@@ -61,7 +61,7 @@ pub struct GlobalProcessors {
     pub snap_prove: ArcSnapProveProcessor,
     pub transfer: ArcTransferProcessor,
     pub unseal: ArcUnsealProcessor,
-    pub wdpost: ArcWdPostProcessor,
+    pub window_post: ArcWdPostProcessor,
 }
 
 impl Module for Box<dyn Module> {
diff --git "a/docs/zh/09.\347\213\254\347\253\213\350\277\220\350\241\214\347\232\204poster\350\212\202\347\202\271.md" "b/docs/zh/09.\347\213\254\347\253\213\350\277\220\350\241\214\347\232\204poster\350\212\202\347\202\271.md"
index 8034180f7..f4b9297d2 100644
--- "a/docs/zh/09.\347\213\254\347\253\213\350\277\220\350\241\214\347\232\204poster\350\212\202\347\202\271.md"
+++ "b/docs/zh/09.\347\213\254\347\253\213\350\277\220\350\241\214\347\232\204poster\350\212\202\347\202\271.md"
@@ -37,9 +37,9 @@ damocles-worker 新增 wdpost planner 用于执行 window post 任务。
        |                          |                          |
 -------+--------------------------+--------------------------+------------
        |                          |                          |
-  pull | job                 pull | job                 pull | job
-  push | res                 pull | res                 pull | res
-   by  | rpc                   by | rpc                   by | rpc
+       | pull job                 | pull job                 | pull job
+       | push res                 | push res                 | push res
+       | by rpc                   | by rpc                   | by rpc
        |                          |                          |
 +------+--------+         +-------+-------+           +------+--------+
 |damocles-worker|         |damocles-worker|           |damocles-worker|
@@ -91,11 +91,19 @@ plan = "wdpost"
 name = "miner-6666-store"
 location = "/mnt/miner-6666-store"
 
-[[processors.wdpost]]
-# 使用自定义 wdpost 算法 (可选)
+
+# 控制 window_post 任务并发 (可选)，不配置则不限制
+[processors.limitation.concurrent]
+window_post = 2
+
+[[processors.window_post]]
+# 使用自定义 wdpost 算法 (可选)， 如果不配置 bin，则默认使用内置算法
 bin="~/my_algorithm"
 args = ["window_post"]
-envs = { BELLMAN_GPU_INDEXS="0",CUDA_VISIBLE_DEVICES="0", ... }
+# 配置自定义算法的环境变量 (可选)
+envs = { BELLMAN_GPU_INDEXS="0", CUDA_VISIBLE_DEVICES="0", ... }
+# 配置本进程最大并发数量 (可选)，不配置则不限制
+concurrent = 1
 ```
 
 ##### 一份最简的只启动一个 wdpost sealing_thread 的配置如下: