The invention provides a video 
encryption method based on hyper-chaos 
system, and relates to the technical field of the 
image processing and secret communication. The method comprises the 
encryption process and the decryption process; the 
encryption process comprises the following steps: enabling a chaos secret communication 
system to achieve a synchronization state, and driving the 
system to generate an encryption initial scrambling sequence and an encryption initial scrambling matrix, and then decomposing video 
plaintext data into a data packet, performing XOR operation on the data packet and the encryption initial scrambling matrix to obtain initial cipherext data, and performing line scrambling operation on the initial 
ciphertext data; and finally performing adding module 
diffusion operation on the scrambled data to obtain the final video 
ciphertext data; the decryption process of the video is the inverse process of the encryption process. Through the video encryption method basedby the hyper-chaos system provided by the invention, the key can be transmitted without using a specific channel, and the risk that the key is stolen in the transmission process is avoided; the 
disadvantage that the low-dimension chaos system is easy to be attacked can be effectively overcome, the security is higher, and the realization is easy.