Abstract:Enterprises have different growth characteristics and development rules at different stages. This research, aiming at the start-up stage, the growth stage and the mature stage of science and technology enterprises for strong policy requirements, analyzes innovative features of the three stages, which are different combinations and evolutionary paths of technology innovation, market innovation, organization innovation, strategy innovation modules at stages; and by using Michael Porter’s theories such as Diamond Model, this research uncovers the different policy demands of science and technology enterprises including technology innovation policies, financial policies of science and technology, talents support policies, innovation environmental policies at three stages to provide references for policy-making of the government.