To solve the problem of single target localization in multistatic passive radar, a weighted least square localization algorithm based on angle information is proposed. The target location model based on angle is designed, and the weighting matrix is designed according to different angle measurement noises. Then the error analysis is carried out and the Cramer-Rao bound of the algorithm is derived. The simulation results show that the proposed algorithm is superior to the same class algorithm, and the optimal location configuration is given by taking three receiving stations and one emitter.