A small-sized photoelectricity servo-turntable is designed to achieve the acquisition and precise tracking of object. The structural design of servo-turntable is carried out according to the system specification and the shafting error of azimuth and pitching is analyzed according to the test data. The test result shows that the structural design can meet the requirement of system specification completely. The structure of turntable is reasonable, innovative and practical and can be referred by the same kind of product.