diff --git a/Explicitly-use-DOH.md b/Explicitly-use-DOH.md
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+Reference to https://github.com/acmesh-official/acme.sh/issues/3487
+
+```bash
+DOH_CLOUDFLARE=1
+DOH_GOOGLE=2
+DOH_ALI=3
+DOH_DP=4 
+```
+
+Explicitly use Aliyun DNS:
+
+```bash
+cd .acme.sh
+echo "export DOH_USE=3" >> acme.sh.env
+source acme.sh.env
+```
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