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描述了基于三维的多混沌系统的图像加密算法。该算法利用多种混沌加密系统把图像切分成三维矩阵系统，在三维空间里对图像置乱变换，然后由多个混沌系统输出的三维混沌序列分别实现空域彩色图像三基色逐像素替代变换。研究结果表明，该算法具有良好的像素值混淆、扩散性能和较大的抵抗强力攻击的密钥空间，加密图像像素值具有类随机均匀分布特性，且相邻像素的值具有零相关特性，证明了所提出方案具有较高的安全性。“,”Describes the multiple chaotic systems based on three dimensional image encryption algorithm.The algorithm uses a variety of chaotic encryption system cut the image into three dimensional matrix system,in the three-dimensional space of image scrambling transformation,and then by multiple three-dimensional chaotic sequence of chaotic system output respec-tively airspace tricolor per-pixel alternative color image transform.Research results show that the algorithm has good confu-sion and diffusion properties of pixels and larger resistance:a powerful attack key space,encrypted image pixels with ran-dom uniform distribution characteristics,and the value of the adjacent pixels with zero correlation properties.