This paper is about the study of realization of the target satellite interception method with velocity gain guidance. The characteristics are the following: based on the given conditions of the interceptor's initial motion parameters and the target's trajectory parameters，firstly the predictive point of impact intercepting the target under the influence of J2 item of the earth oblatness is determined，then the interceptor's velocity required during the collision time using Lambert method is decided，at last，the target interception with velocity gain guidance method is realized. A transform condition with higher precision to the terminal guidance by using this method is guaranteed.