diff --git a/docs/user_armhf_lib.md b/docs/user_armhf_lib.md
new file mode 100644
index 0000000..61eb730
--- /dev/null
+++ b/docs/user_armhf_lib.md
@@ -0,0 +1,7 @@
+#### A new way to used armhf lib in 64 bit ENV.
+
+```
+sudo apt install libc6-armhf-cross libstdc++6-armhf-cross -y
+sudo echo '/usr/arm-linux-gnueabihf/lib/' > /etc/ld.so.conf.d/libs_armhf.conf
+sudo ldconfig
+```