Abstract: Aiming at the problems of low efficiency and high complexity using multi-UAV direction finding cross positioning method, a single UAV interference source positioning algorithm is proposed. Using the drone to realize the measurement of the direction and strength of the interference signal at multiple points in a short time, using the direction-finding cross-location method combined with the interference signal strength (RSSI) ranging cross-location method to solve the calculation, and giving the cross-location model solution process On the basis of cross-location, Gaussian filtering is performed on the interference signal strength received at different measurement locations to estimate the location of the interference source, and the direction-finding cross-location results are corrected. The experimental results show that when the directional error angle is greater than 4°, the hybrid positioning algorithm improves the positioning accuracy by at least 15 m compared to the directional cross positioning algorithm.