Abstract:This paper examines the influence of government subsidies on enterprises’ R D investment behavior in new energy automobile sector. The results showed that:(1) In the early development of the new energy automobile market,Government subsidies which aims to expand the market is appropriate. (2) After reaching the equilibrium market value, only direct government R D subsidies can increase the proportion of investment enterprises. (3) The higher level of new energy automotive technology R D information reveal,direct R D subsidies should be taken to promote the R D investment; while the greater the new energy automobile market first-mover advantage, the effect of government subsidies which aims to expand the market is more obvious.