中文摘要：

在匹配2008年全国经济普查服务业企业数据和对外投资数据基础上，通过分位数回归方法实证检验了服务业双向投资对不同分位点企业创新竞争力的影响。研究发现：服务业双向投资整体上提升了我国企业的创新竞争力：且这种提升作用呈倒u型的分布特征．即处在创新竞争力分布两瑞（q10、q90）的企业提升作用较小，而分布中间（q50）的企业则提升效果明显。分行业看，中低技术企业的提升效应比高技术企业更大。分地区看，相对于北京，上海处在创新竞争力分布中间的企业提升作用比分布高端的企业更为显著，而对广东的提升作用则在所有企业均较为明显。

英文摘要：

Based on the 2008 services enterprises＇ economic census data and foreign investment data, the paper empirically studies the impact of two-way investment on services enterprises＇ innovation competence with quantile regression. The results show that two-way investment in services enhances enterprises＇ innovation competence, and the effect has an inverted u-shaped distribution, namely in high-level and low-level innovation competence （ql0, q90）, the effect is weak, but it is larger in the intermediate-level （q50）. FOr different industries, the promotion in low-tech industries is greater than that in high- tech ones. The effect also exists a regional difference. Compared to Beijing, Shanghai＇s enterprises with an intermediate-level innovation competence promote more than those with a high-level one, but in Guangdong, whether the enterprise is intermediate-level or high-level, the promotion effect is obvious.