The article analyzes the efficiency of e-commerce companies in China and identifies factors influencing their performance. Using a DEA-Tobit regression model, the study found that these companies have room for improvement in efficiency. Issues like excessive input or output shortages were identified. Factors like asset turnover, net profit, and brand value were crucial for operational efficiency. The study suggests that e-commerce companies should continuously enhance their technology and management levels, optimize resource allocation, and improve technical efficiency to pursue operational efficiency.