diff --git a/doc/backend.md b/doc/backend.md
index b2f7dc4826..9477f573ac 100644
--- a/doc/backend.md
+++ b/doc/backend.md
@@ -33,7 +33,6 @@ Both `.xlo` and `.jax` are customized format extensions defined in DeePMD-kit, s
 `.savedmodel` is the TensorFlow [SavedModel format](https://www.tensorflow.org/guide/saved_model) generated by [JAX2TF](https://www.tensorflow.org/guide/jax2tf), which needs the installation of TensorFlow.
 Only the `.savedmodel` format supports C++ inference, which needs the TensorFlow C++ interface.
 The model is device-specific, so that the model generated on the GPU device cannot be run on the CPUs.
-Currently, this backend is developed actively, and has no support for training.
 
 ### Paddle {{ paddle_icon }}