As the distortion of fish-eye images is very serious,the distortion should be corrected. Based on embedded DSP system,the distortion of fish-eye images is corrected by using the longitude-latitude projection method. This method does not require any calibration equipment during the correction,and the operation is easy. Experiment results show that this method has better correction effect. After using embedded DSP system,the operation speed is fast and the spended time is short. It can meet the real-time requirement.