Knowledge and technical progress forced the high-tech enterprises to invest in human capital to promote enterprise knowledge and technological innovation,and maintain its core competitiveness.However,huge risks in human capital investment affect enterprise's initiative in human capital investment.To solve this problem,this paper introduced game model to have a deep analysis to the management decision-making issues of human capital investment risk,which based on defining the basic intension of high-tech enterprises human capital investment and its risks.Then put forward the measures which can prevent human capital investment risk,so as to provide a new train of thought to solve similar problems.