Abstract: The literature that examines the effects of reform of "Streamlining Administration, Delegating Powers, Improving Regulation and Services" (RSDIS) on enterprises' export products quality is rare, which is not conducive to understanding the contribution of the RSDIS on the upgrading of China's export trade mode. Based on evaluation data about the RSDIS provided by the Chinese Private Enterprise Survey (CPES) 2014, as well as the cross-section data of 23 provinces, 103 prefecture level cities and 2141 wood-processing enterprises (WPEs) in 2014, this paper investigates the RSDIS's impacts on the export products quality of sample enterprises by using Tobit model. The results show that: ① the regional RSDIS has a significant role in promoting the quality upgrade of export products. ② The positive effects of regional RSDIS is attributed mainly to "streamlining administration and delegating powers" and "improving services". ③ The regional RSDIS will promote the upgrading of the quality of WPEs' export products by decreasing operating costs and reducing rent-seeking activities. ④ The regional RSDIS positively regulates the role of factors such as technological innovation, cost savings, and reduced financing difficulty in promoting the upgrading of the quality of export products of enterprises.