diff --git a/vllm_ascend/quantization/w8a8.py b/vllm_ascend/quantization/w8a8.py
index ae9dd46fe2e..99de0bf8ce2 100644
--- a/vllm_ascend/quantization/w8a8.py
+++ b/vllm_ascend/quantization/w8a8.py
@@ -110,5 +110,6 @@ def process_weights_after_loading(self, layer):
             requires_grad=False)
         if self.transpose_weight:
             layer.weight.data = layer.weight.data.transpose(0, 1).contiguous()
+        layer.weight.data = torch_npu.npu_format_cast(layer.weight.data, 29)
         layer.weight_scale.data = torch.flatten(layer.weight_scale.data)
         layer.weight_offset.data = torch.flatten(layer.weight_offset.data)
diff --git a/vllm_ascend/quantization/w8a8_dynamic.py b/vllm_ascend/quantization/w8a8_dynamic.py
index 5d2b442cf18..a5635d28f45 100644
--- a/vllm_ascend/quantization/w8a8_dynamic.py
+++ b/vllm_ascend/quantization/w8a8_dynamic.py
@@ -29,6 +29,82 @@
 VLLM_ENABLE_MC2: bool = envs_ascend.VLLM_ENABLE_MC2
 
 
+def apply_mlp_decode(hidden_states_wrapper: List[torch.Tensor],
+                     w1: torch.Tensor,
+                     w1_scale: torch.Tensor,
+                     w2: torch.Tensor,
+                     w2_scale: torch.Tensor,
+                     group_list: torch.Tensor,
+                     dynamic_scale: torch.Tensor = None,
+                     group_list_type: int = 1) -> torch.Tensor:
+    """
+    apply MLP: gate_up_proj -> swiglu -> down_proj
+
+    Args:
+        hidden_states_wrapper: wrapper of input hidden states with shape (num_tokens, hidden_size).
+        w1: expert weights1 with shape
+            (num_experts, hidden_size, intermediate_size * 2)
+        w1_scale: weights1 scale with shape (num_experts, intermediate_size * 2)
+        w2: expert weights2 with shape
+            (num_experts, intermediate_size, hidden_size)
+        w2_scale: weights2 scale with shape (num_experts, hidden_size)
+        group_list: number of tokens for each expert, follow cumsum mode, and
+            with shape (num_experts).
+        transpose_weight:
+            w1: (num_experts, intermediate_size * 2, hidden_size) ->
+                    (num_experts, hidden_size, intermediate_size * 2)
+            w2: (num_experts, hidden_size, intermediate_size) ->
+                    (num_experts, intermediate_size, hidden_size)
+
+    Returns:
+        hidden_states: output hidden states after MLP.
+    """
+
+    assert len(hidden_states_wrapper) == 1
+    hidden_states = hidden_states_wrapper.pop()
+    if dynamic_scale is None:
+        hidden_states, pertoken_scale = torch_npu.npu_dynamic_quant(
+            hidden_states)
+    else:
+        pertoken_scale = dynamic_scale
+
+    # gmm1: gate_up_proj
+    hidden_states = torch_npu.npu_grouped_matmul(
+        x=[hidden_states],
+        weight=[w1],
+        split_item=3,
+        group_list_type=group_list_type,
+        group_type=0,
+        group_list=group_list,
+        output_dtype=torch.int32)[0]
+
+    # act_fn: swiglu
+    hidden_states, swiglu_out_scale = torch_npu.npu_dequant_swiglu_quant(
+        x=hidden_states,
+        weight_scale=w1_scale,
+        activation_scale=pertoken_scale,
+        bias=None,
+        quant_scale=None,
+        quant_offset=None,
+        group_index=group_list,
+        activate_left=True,
+        quant_mode=1,
+    )
+
+    # gmm2: down_proj
+    hidden_states = torch_npu.npu_grouped_matmul(
+        x=[hidden_states],
+        weight=[w2],
+        scale=[w2_scale],
+        per_token_scale=[swiglu_out_scale],
+        split_item=2,
+        group_list_type=group_list_type,
+        group_type=0,
+        group_list=group_list,
+        output_dtype=w2_scale.dtype)[0]
+    return hidden_states
+
+
 def apply_mlp(hidden_states_wrapper: List[torch.Tensor],
               w1: torch.Tensor,
               w1_scale: torch.Tensor,
@@ -159,13 +235,13 @@ def fused_experts_with_mc2(
     hidden_states_wrapper = [expand_x]
     del expand_x
 
-    down_out_list = apply_mlp(hidden_states_wrapper,
-                              w1,
-                              w1_scale,
-                              w2,
-                              w2_scale,
-                              expert_token_nums,
-                              dynamic_scale=dynamic_scale)
+    down_out_list = apply_mlp_decode(hidden_states_wrapper,
+                                     w1,
+                                     w1_scale,
+                                     w2,
+                                     w2_scale,
+                                     expert_token_nums,
+                                     dynamic_scale=dynamic_scale)
 
     # moeCombine
     kwargs = {
@@ -628,7 +704,7 @@ def apply(
                 hidden_states=x,
                 w1=layer.w13_weight,
                 w2=layer.w2_weight,
-                w1_scale=layer.w13_weight_scale,
+                w1_scale=layer.w13_weight_scale_fp32,
                 w2_scale=layer.w2_weight_scale,
                 topk_weights=topk_weights,
                 topk_ids=topk_ids,
@@ -665,6 +741,8 @@ def process_weights_after_loading(self, layer):
                 1, 2).contiguous()
         layer.w13_weight_scale.data = layer.w13_weight_scale.data.view(
             layer.w13_weight_scale.data.shape[0], -1)
+        layer.w13_weight_scale_fp32 = layer.w13_weight_scale.data.to(
+            torch.float32)
         layer.w13_weight_offset.data = layer.w13_weight_offset.data.view(
             layer.w13_weight_offset.data.shape[0], -1)
         layer.w2_weight_scale.data = layer.w2_weight_scale.data.view(