By analyzing the evaluation method and indicator system of standardization economic benefits based on relevant national standards and existing literature, we found that all exist such problems as the evaluation system is not scientific, the applicability of the evaluation method is not good enough and the evaluation content is not comprehensive. The theory of standardization economic benefits evaluation based on the value chain proposed by ISO is applied in this paper to analyze the mechanism of standards’ impact on all aspects of the value chain. This paper takes Shandong Luyang Co., Ltd., Joyoung Co., Ltd., Shandong Haoyue Resin Co., Ltd., Zibo Bona Science and Technology Development Co., Ltd. as samples, empirically analyzes the economic benefits brought by standards to enterprises.