In the field of wireless sensor network positioning, the DV-Hop algorithm is widely used for its simple implementation. Aiming at the problem of large positioning error, a weighted positioning algorithm based on DV-Hop multiple communication radii is proposed. The algorithm refines and optimizes the number of hops through multiple communication radii and the introduction of correction factors, then corrects the average hop distance through the minimum mean square error criterion and weighted method, and finally estimates the coordinates of unknown nodes with the weighted least squares method. Through simulations, it is concluded that the positioning accuracy of the proposed algorithm is improved by about 60.5% compared with the DV-Hop algorithm and by about 36.4% and 13.8% compared with the dual communication radius optimization algorithm and the 3-DV-Hop algorithm respectively under the same experimental conditions.