diff --git a/Software/Development/System/Linux/User/API/Linux_进程_线程与_CPU_的亲和性(Affinity).md b/Software/Development/System/Linux/User/API/Linux_进程_线程与_CPU_的亲和性(Affinity).md
index a5cfe90..1664857 100644
--- a/Software/Development/System/Linux/User/API/Linux_进程_线程与_CPU_的亲和性(Affinity).md
+++ b/Software/Development/System/Linux/User/API/Linux_进程_线程与_CPU_的亲和性(Affinity).md
@@ -261,3 +261,20 @@ this thread 2812323584 is running in processor 1
 this thread 2812323584 is running in processor 2
 this thread 2812323584 is running in processor 3
 ```
+
+## 4.Android 系统的特殊说明
+
+Android 系统屏蔽了 pthread_setaffinity_np() 函数，需要通过 syscall(__NR_sched_setaffinity) 替代：
+
+```cpp
+void set_cur_thread_affinity(int mask) {
+    int err, syscallres;
+    pid_t pid = gettid();
+    syscallres = syscall(__NR_sched_setaffinity, pid, sizeof(mask), &mask);
+    if (syscallres) {
+        err = errno;
+        LOGE("Error in the syscall setaffinity: mask = %d, err=%d",mask,errno);
+    }
+    LOGD("tid = %d has setted affinity success",pid);
+}
+```