diff --git a/mindnlp/core/__init__.py b/mindnlp/core/__init__.py
index 8ecdbdf5e..1b4dfe125 100644
--- a/mindnlp/core/__init__.py
+++ b/mindnlp/core/__init__.py
@@ -47,7 +47,7 @@
 from .amp import autocast, GradScaler
 
 from . import profiler, cuda, optim, amp, compiler, jit, version, __future__, overrides, \
-    return_types, linalg, fx, backends, testing, nn
+    return_types, linalg, fx, backends, testing, nn, fft
 
 from ._lowrank import svd_lowrank
 from .random import get_rng_state, initial_seed, manual_seed, seed, set_rng_state
diff --git a/mindnlp/core/_tensor.py b/mindnlp/core/_tensor.py
index a88d65fb1..174f1e3fc 100644
--- a/mindnlp/core/_tensor.py
+++ b/mindnlp/core/_tensor.py
@@ -1,5 +1,6 @@
 import math
 import numpy as np
+from functools import partial
 import mindspore
 from mindspore import Tensor
 from mindspore.common.tensor import _TensorMeta
@@ -226,8 +227,42 @@ def __getitem__(self, slices):
     Tensor.__getitem__ = __getitem__
     StubTensor.__getitem__ = __getitem__
 
+    def _convert_numpy_slices(self, key):
+        """递归转换 key 中的 NumPy 整数为内置 int"""
+        # 处理元组：遍历所有元素并递归转换
+        if isinstance(key, tuple):
+            return tuple(self._convert_numpy_slices(k) for k in key)
+        
+        # 处理 slice 对象：转换 start/stop/step
+        elif isinstance(key, slice):
+            start = key.start
+            stop = key.stop
+            step = key.step
+            
+            # 转换 NumPy 整数为 Python int
+            if isinstance(start, np.integer):
+                start = int(start)
+            if isinstance(stop, np.integer):
+                stop = int(stop)
+            if isinstance(step, np.integer):
+                step = int(step)
+            
+            return slice(start, stop, step)
+        
+        # 转换单个 NumPy 索引值
+        elif isinstance(key, np.integer):
+            return int(key)
+        
+        # 其他类型（如 int、None）直接返回
+        else:
+            return key
+
+    Tensor._convert_numpy_slices = _convert_numpy_slices
+    StubTensor._convert_numpy_slices = _convert_numpy_slices
+
     origin_setitem = Tensor.__setitem__
     def __setitem__(self, slices, value):
+        slices = self._convert_numpy_slices(slices)
         if isinstance(value, float):
             if value == float('inf'):
                 value = ops.finfo(self.dtype).max
@@ -399,6 +434,14 @@ def __rmul__(self, other):
     Tensor.__rmul__ = __rmul__
     StubTensor.__rmul__ = __rmul__
 
+    Tensor.norm = ops.norm
+    StubTensor.norm = ops.norm
+
+    def clamp_min(self, value):
+        return ops.clamp(self, value)
+    Tensor.clamp_min = clamp_min
+    StubTensor.clamp_min = clamp_min
+
 def _rebuild_from_type_v2(func, new_type, args, state):
     ret = func(*args)
     return ret
\ No newline at end of file
diff --git a/mindnlp/core/fft/__init__.py b/mindnlp/core/fft/__init__.py
new file mode 100644
index 000000000..c208ed94d
--- /dev/null
+++ b/mindnlp/core/fft/__init__.py
@@ -0,0 +1,38 @@
+"""fft"""
+from mindspore import ops
+from mindspore.ops._primitive_cache import _get_cache_prim
+from ..configs import use_pyboost
+from ..ops import narrow
+from ..nn import functional as F
+
+def rfft(input, n=None, dim=-1, norm="backward"):
+    if use_pyboost():
+        return ops.rfft(input, n, dim, norm)
+    if input.shape[dim] < n:
+        pad_inf = (0, n - input.shape[dim])
+        pad_dims = (0, 0) * (input.ndim - (dim + 1)) + pad_inf
+        input = F.pad(input, pad_dims)
+    else:
+        input = narrow(input, dim, 0, n)
+    _rfft = _get_cache_prim(ops.FFTWithSize)(input.ndim, False, True, norm)
+    return _rfft(input)
+
+def irfft(input, n=None, dim=-1, norm="backward"):
+    if use_pyboost():
+        return ops.irfft(input, n, dim, norm)
+    if input.shape[dim] < n:
+        pad_inf = (0, n - input.shape[dim])
+        pad_dims = (0, 0) * (input.ndim - (dim + 1)) + pad_inf
+        input = pad(input, pad_dims)
+    else:
+        input = narrow(input, dim, 0, n)
+    _irfft = _get_cache_prim(ops.FFTWithSize)(input.ndim, True, True, norm)
+    return _irfft(input)
+
+def fftn(input, s=None, dim=None, norm=None):
+    return ops.fftn(input, s, dim, norm)
+
+def fft(input, s=None, dim=-1, norm=None):
+    return ops.fft(input, s, dim, norm)
+
+__all__ = ['fft', 'fftn', 'irfft', 'rfft']
\ No newline at end of file
diff --git a/mindnlp/core/nn/functional.py b/mindnlp/core/nn/functional.py
index be9bd2c60..60a5bef53 100644
--- a/mindnlp/core/nn/functional.py
+++ b/mindnlp/core/nn/functional.py
@@ -246,6 +246,40 @@ def apply_rotary_pos_emb(query, key, cos, sin, position_ids, cos_format=0):
         query, key, cos, sin, position_ids, cos_format
     )
 
+def custom_circular_pad(x, pad):
+    """手动实现 torch.nn.functional.pad 的 circular 模式。
+    
+    参数:
+        x: 输入张量，形状为 (B, C, D1, D2, ...)
+        pad: 填充参数，格式为 (left_N, right_N, left_{N-1}, right_{N-1}, ..., left_1, right_1)
+              表示从最后维度开始向前定义填充大小
+    
+    返回:
+        循环填充后的张量
+    """
+    ndim = x.dim()
+    n_pad_dims = len(pad) // 2
+    assert n_pad_dims <= ndim, "填充参数超过了张量的维度"
+    
+    # 按从最后维度向前处理填充
+    for dim in range(ndim-1, ndim-1-n_pad_dims, -1):
+        # 当前维度的左右填充量
+        idx = 2 * (ndim - 1 - dim)  # 在pad元组中的起始位置
+        left_pad = pad[idx]
+        right_pad = pad[idx + 1]
+        
+        if left_pad == 0 and right_pad == 0:
+            continue  # 跳过该维度
+            
+        size = x.shape[dim]  # 当前维度的原始长度
+        new_size = left_pad + size + right_pad
+        
+        # 生成循环索引: (index - left_pad) mod size
+        index = (core.arange(new_size) - left_pad) % size
+        x = core.index_select(x, dim, index)
+
+    return x
+
 def pad(input, pad, mode='constant', value=0.0):
     if sum(pad) == 0:
         return input
@@ -253,8 +287,10 @@ def pad(input, pad, mode='constant', value=0.0):
         pad = tuple(p if isinstance(p, int) else p.item() for p in pad)
     if use_pyboost() and not ON_A1:
         return mint.nn.functional.pad(input, pad, mode, value)
-    if mode in ['reflect', 'circular']:
+    if mode == 'reflect':
         return ops.pad(input, pad, mode)
+    if mode == 'circular':
+        return custom_circular_pad(input, pad)
     new_pad = ()
     for idx, pad_v in enumerate(pad):
         if pad_v < 0:
diff --git a/mindnlp/core/ops/__init__.py b/mindnlp/core/ops/__init__.py
index e4b029cbd..63ed67c5b 100644
--- a/mindnlp/core/ops/__init__.py
+++ b/mindnlp/core/ops/__init__.py
@@ -10,7 +10,6 @@
 from .reduction import *
 from .other import *
 from .tensor import *
-# from .fft_op import *
 # from .spectral import *
 from ._inner import *
 from .optim import *
@@ -27,7 +26,6 @@ def load_library(lib_path):
 __all__.extend(blas.__all__)
 __all__.extend(comparison.__all__)
 __all__.extend(creation.__all__)
-# __all__.extend(fft_op.__all__)
 __all__.extend(pointwise.__all__)
 __all__.extend(random.__all__)
 __all__.extend(reduction.__all__)
diff --git a/mindnlp/core/ops/creation.py b/mindnlp/core/ops/creation.py
index 5bb550a32..502a907a7 100644
--- a/mindnlp/core/ops/creation.py
+++ b/mindnlp/core/ops/creation.py
@@ -142,7 +142,7 @@ def empty(*size, dtype=None, device=None, requires_grad=False, pin_memory=False,
     if device is None:
         device= get_default_device()
 
-    if isinstance(size[0], (tuple, list)):
+    if len(size) > 0 and isinstance(size[0], (tuple, list)):
         size = size[0]
 
     if dtype is None: