按照成熟技术和不成熟技术两种情况,讨论了两个潜在的企业进入者最优的产品质量选择,结果表明:在技术成熟时,先行企业会选择高质量的产品并获得先行优势;在技术不成熟的动态竞争中,如果产品质量改进的成本是递增的,就不会存在先行优势,要么出现利润均等,要么出现后动企业的后发优势. According to the mature technology and the immature technology, the optimal product quality choices of two potential business entrants are discussed. The results show that when the technology is mature, the first enterprise will choose the high quality product and gain the first advantage; Immature dynamic competition, if the cost of product quality improvement is incremental, there will be no first-mover advantage, either the emergence of equal profits, or after-mover business backward advantage.