To meet the demand of the direction finding receivermeasuring two radar signals,two different radar signals arriving simultaneously andhaving different bandwidths.Proposes a dualchannel multistage channelized receiver,it has high efficient digital receiver structure. The receiver uses two bandwidths;two types of channels are arranged in the form of parity, threestage channel structure. It may provide a variety of frequency resolution after three band division. It may adapt to the different bandwidth input signal. Compared with the singlestage channel scheme, it improves the processing capacity of two different radar signals arriving simultaneously andhaving different bandwidths. And through the effective channel detection mechanism, it can receive two different radar signals arriving simultaneously and having different bandwidths. The simulation results illustrated the validity of the dualchannel multistage channelized receiver.