This paper describes briefly the basic principles of Electronic Image Stabilization (EIS) technique,and emphasizes the implementation and performance characteristics of the electronic image stabilizer on the ship-borne TV reconnaissance system and the detecting and compensating technologies adopted on them to meet the performance requirements.The proposed electronic image stabilizer detects motion vector between reference frame and current frame in sequential image using the Gray Projection Algorithm (GPA).In order to achieve accurate detecting results,an improved gray projection algorithm is exploited to detect sub-pixel image motion vector.Furthermore,the proposed electronic image stabilizer uses the smooth algorithm in transform formula of the motion compensation,which avoids mosaics of image occurred and improves the precision of image compensation.The experimental results indicate that the electronic image stabilizer is effective to actual application and has high image stabilizing precision and excellent real time processing capacity.