Abstract: Based on space triangle relation reformed between airspace target and two networked radars, using measurement information and law of sines & cosine to resolve the position of airspace target, the algorithm of radar networking triangle fusion location (ARNTFL) is proposed in the paper. Error composing is analysed by using the method of differential and first-order and second-order moment of ARNTFL is completed by using expectation analysis. Simulations demostrated that location precision of ARNTFL is obvious better than single radar.