Compound eye consistis of thousands of ommaditia, which insures the ability of fast detection and location on obstacles and predators. Inspired of compound eye, a method of fast location estimation was proposed. Firstly, a parametric equation between space and detectors field of view was established including unknown parameters, which can be gotten from the array of detecters detected moving targets; secondly, detectors in line array were used to get moving objects signals by simulation; finally, analys the signal data with threshold to form the array of detectors′, which was used to solve parametric equation and achieve positioning. Compared with the result betwen actual distance and the calculated, the results show the method can achieve the target location estimation of different sizes in different trajectories in time.