How to maintain the smooth operation of the international trade platform when the business is busy is a problem that needs to be solved at present. In this regard, after retaining the main functions of Dubbo, the article obtains the DubboFly distributed service framework through re-layered design and improvement of relevant core technologies. Among them, various improvement methods such as RMIx transmission protocol and BDFCM algorithm are involved. And apply DubboFly framework to international trade platform. Relevant application effects show that, compared with the other six combination schemes, the combination scheme including the RMIx transmission protocol 7. Under the single consumer end, the overall time consumption fluctuates slowly, is not easily affected by data files, and is at a low level. The average time for a 1 M file is 2.81 ms/KB; for multiple consumers, the average time is 0.26 ms/KB. And the data clustering error value of Scheme ⑦ decreases to 0.74 with the increase of the number of neighbors, and the difference between the consumption time and the maximum value of Scheme ① and Scheme ② is 24.7 and 18.6%. Compared with the other three algorithms, the BDFCM algorithm has a higher connection rate and a lower failed request rate when the number of concurrent connections is high. When the number of concurrent connections is 4000, the failed request rate is 4%, which is 39% smaller than that of the polling algorithm. The creation time and running time of Javasisst are 164 and 205 ms respectively, while the JDK creation time is at least 12 ms, which is 209 ms less than CGLib; the running time of Javasisst is 205 ms, which is significantly less than the other two dynamic proxy technologies. The DubboFly distributed service framework improves the operation performance of the international trade platform and is conducive to the smooth development of business.