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When high frequency is applied in space TT&C, such as X-band and Ka-band, the beam angles of ladar antenna become narrower and narrower, So it is a new technological difficulty to catch and track the low-orbit and high-dynamic objects, especially on the instrumentation ship. Lower ship-swing isolation can cause bigger ship-swing residual and at last the tracking object is lost. At present, the feed-forward from center computer system and the feed-forward gyroscope are separately adopted to increase the acceleration error coefficient, i.e. the Ka Value, of shipborne radar servo system, and the latter is superior in precision and real-time. This paper mainly discusses two kinds of installing forms, conversion formulas and application effect about feed-forward gyroscope.