人们一般认为对外资的优惠政策提高了外资企业在中国的利润空间,补偿了其R&D投入,从而可以激励外资企业在中国的技术投入,最终有利于中国的技术进步,本文通过理论分析和数据检验发现,优惠政策对吸引高新技术的外资企业没有什么作用,或者要其起作用的话,中国的利润损失巨大。优惠政策可以吸引先进的成熟技术,但与此同时,落后技术也有了在中国发展的空间。 It is generally believed that the preferential policies for foreign capital improve the profit margin of foreign-funded enterprises in China and compensate for their R & D investment, which can stimulate foreign investment in China and ultimately benefit China’s technological progress. This paper, through theoretical analysis and data validation Found that preferential policies have little or no effect on attracting high-tech foreign-funded enterprises or that China is losing huge profits if it is to be effective. Preferential policies can attract advanced and mature technologies, but at the same time, backward technologies also have room for development in China.