The huge and still rapidly growing investments in the digital transformation of the securities industry urgently need to be reasonably supported by corresponding supporting mechanisms.Considering the characteristics of securities business and management and based on the research idea of"combining both macro and micro perspectives as well as theoretical and empirical analysis,"this paper systematically analyzes the key elements in constructing a value evaluation system for digital transformation.The paper establishes a comprehensive value evaluation system for the digital transformation of securities companies,which includes a macro indicator system,a macro analysis model,a micro evaluation framework,and micro measurement methods.Using historical data,this paper analyzes the systematic application of the evaluation system and verifies the"empowerment effect"of digital transformation in driving revenue growth of securities companies.The paper identifies business and regional heterogeneities in digital transformation contributing to the revenue growth of securities companies and examines the nonlinear characteristics and specific thresholds of the impact of digital transformation on the development of securities companies.Based on the research findings,the paper offers optimization suggestions for the digital transformation of securities companies from the aspects of improving transformation efficiency,optimizing transformation layout,creating differentiated advantages,and establishing comprehensive supporting mechanisms.