無 / Attracted by the promise of greater market exposure and increase revenues, some firms have adopted B2B electronic market to expand international markets. However, do firms reap export performance benefits of increased extent of B2B electronic market? Besides, what accounts for different export performance, in other word, under what conditions, the extent of exporters’ B2B electronic market adoption will have positive effects on export performance? Drawing from resource based view; this study develops a conceptual framework which links the relationship between the extent of exporters’ B2B electronic market adoption and export performance. And then, analyzing the data collected from in-depth interview with managers in China, the study propose several propositions in the linkages between the adoption of B2B electronic market, market orientation, export commitment and export performance. The results concluded in the following statement. Firstly, the greater extent of usage of B2B electronic market, the better the exporters’ export performance. Furthermore, both market orientation and export commitment moderate the relationships between the extent of exporters’ B2B electronic market and export performance. Overall, we found that the greater the firm’s market orientation, the greater is the influence of B2B electronic market on export performance. Additionally, the greater the firm’s export commitment, the greater is the influence of B2B electronic market on export performance.