The invention discloses a non-cooperative game-based radar networking power control method and belongs to the radar signal processing technical field. According to the method of the invention, propagation loss between the radars of a system and a target and the radar scattering cross sections of the target relative to each radar are obtained based on prior knowledge; with a certain target detection performance condition satisfied, the transmission power of the radars is minimized, a non-cooperative game-based radar networking power control model is established, and the model is solved through the classic Lagrangian relaxation algorithm; and after iterative calculation is performed, with the target detection performance condition satisfied, a power value represented by a symbol described in the descriptions of the invention which makes the transmission power of the radars minimum is adopted as an optimal solution, and the minimum total transmission power of a radar networking system, which complies with a constraint condition, can be obtained. With the non-cooperative game-based radar networking power control method of the invention adopted, interference between different radars in the radar networking system can be reduced, and the radio frequency stealth performance of the system can be improved with the target detection performance satisfied.