Based on Peter Howitt's endogenous growth model ( 1999), this paper introduces the viewpoint of great findings, changes the innovation modes and ways of knowledge spillover and studies the factors affecting the economic growth rates. 本文在PeterHowitt(1999)内生增长模型的基础上,引入重大发现的观点,改变了革新模式和知识溢出的方式来研究经济增长率的影响因素。