Digital image has become an important medium for people to store information, disseminate knowledge and analyze problems, especially in the information age. However, with the development of network technology and the lack of corresponding supervision technology, the digital images which are transmitted in the network are very easy to be stolen and tampered. The owners of the image are hard to maintain their ownership without technical support. The increasing development of digital watermarking technology is to solve this problem. In this paper, a watermarking algorithm based on human visual properties and robustness in wavelet domain is proposed.