diff --git a/config/testnet/README.md b/config/testnet/README.md
index 7fbe2f06..1b22e3ed 100644
--- a/config/testnet/README.md
+++ b/config/testnet/README.md
@@ -90,4 +90,14 @@ env in docker-compose.
 
 ### Start
 
-Run node with `docker-compose up` command and stop it with `docker-compose down`.
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+Run node with `docker-compose up` command and stop it with `docker-compose down`.
+
+### Debug
+
+To print node logs use `docker logs neofs-testnet`. To print debug messages in 
+log, setup log level to debug with this env:
+
+```yaml
+     environment:
+       - NEOFS_LOGGER_LEVEL=debug
+```
\ No newline at end of file