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At present, in wireless network, because the secure environment in the terminal of users has not been embedded, main cryptology-based methods can not be directly used to protect the copyright of data. Under this situation, architecture based on watermark for digital right management and digital copyright protection is proposed in this paper. The architecture is called WDRM, watermark-based digital right management. At first, its system model and procession are designed in detail, including the registration, the downloading, the superdistribution, and the cooperation. Because the watermark embedding and the extraction algorithms are the kernel in this architecture; we also discuss how to choose and design the algorithms. Then we establish a package for all algorithms in WDRM.