Since the received signals suffer from mutual interference between the target echo and communication signals in UAV Radar-Communication integration(RadCom) system.In order to solve the problem,the standard OFDM signal is improved,an integrated signal model using interleaved OFDM is designed,in which each of the UAV is allocated a non-overlapping set of subcarriers within the signal bandwidth.A modulation symbol-based processing method is used to achieve the high resolution range-velocity image,no deterioration of the achievable range resolution.Simulation results show that the proposed method is superior to the existing method in the performance of target imaging and computational complexity,where the peak side lobe ratio of the range profile is improved by about 9 dB in low signal-to-interference ratio,and it can realize efficient data communication at megabits per second.