In order to further improve the target detection and monitoring capability of airborne early warning radar, this paper first analyzes the factors affecting the detection range of single platform airborne early warning radar, introduces the characteristics and necessity of networked collaborative detection mode, and gives the definition of stable detection coverage and Doppler blind zone. Secondly, the cooperative detection modes among airborne early warning radar and other airborne early warning radar, shipborne radar, Unmanned Aerial Vehicle(UAV) radar and other different platform radars are analyzed and the simulations and evaluations are carried out. The performance parameters are compared with that of various cooperative detection modes. Finally, the development trend of networked cooperative detection of airborne early warning radar is prospected.