diff --git a/docs/mindquantum/docs/source_en/vqe_for_quantum_chemistry.md b/docs/mindquantum/docs/source_en/vqe_for_quantum_chemistry.md
index e54bf8f6df7025861d6b7888f04f864db3129a88..4111bde4ba9980f6f88448138cd7c64bcac0f464 100644
--- a/docs/mindquantum/docs/source_en/vqe_for_quantum_chemistry.md
+++ b/docs/mindquantum/docs/source_en/vqe_for_quantum_chemistry.md
@@ -263,7 +263,7 @@ ansatz_circuit, \
 init_amplitudes, \
 ansatz_parameter_names, \
 hamiltonian_QubitOp, \
-n_qubits, n_electrons = generate_uccsd(molecule_file, th=-1)
+n_qubits, n_electrons = generate_uccsd(molecule_file, threshold=-1)
 ```
 
 ```bash
diff --git a/docs/mindquantum/docs/source_zh_cn/vqe_for_quantum_chemistry.ipynb b/docs/mindquantum/docs/source_zh_cn/vqe_for_quantum_chemistry.ipynb
index 6d112741b10ce6249eca5306ade52f03b2c8676a..c42553acc4da081db9dcc0779d1d4451dc928c1c 100644
--- a/docs/mindquantum/docs/source_zh_cn/vqe_for_quantum_chemistry.ipynb
+++ b/docs/mindquantum/docs/source_zh_cn/vqe_for_quantum_chemistry.ipynb
@@ -365,7 +365,7 @@
     "init_amplitudes, \\\n",
     "ansatz_parameter_names, \\\n",
     "hamiltonian_QubitOp, \\\n",
-    "n_qubits, n_electrons = generate_uccsd(molecule_file, th=-1)"
+    "n_qubits, n_electrons = generate_uccsd(molecule_file, threshold=-1)"
    ]
   },
   {