通过分析彩色图像滤波的一般方法，提出了一种基于矢量中值滤波的改进算法。该算法融合了线性均值滤波和非线性矢量中值滤波两种方法，大大降低了运算复杂度，同时对脉冲噪声和高斯噪声有好的抑制作用，能有效地保护图像的边缘信息，滤波后不会出现新的颜色。另外本算法的运算复杂度随着滑动窗的增大而缓慢增加，使其能够达到滤波效果和运算复杂度的有效平衡。-By analyzing the general method of color image filtering, a vector median filter based on improved algorithm. The algorithm combines the linear and nonlinear mean filter are two methods of vector median filtering, which greatly reduces the computational complexity, while impulse noise and Gaussian noise with a good inhibitory effect, can effectively protect the image edge information, Filtering does not occur after the new color. Also the computational complexity of this algorithm with the sliding window increases slowly increased to enable it to achieve the filtering effect and the computational complexity of an effective balance.