1940 After the establishment of Wang puppet regime in March, he became the backstage boss and contact person of Japanese imperialism to control and manipulate Wang puppet regime. He served as the highest military adviser of Wang puppet regime. The General Staff Headquarters of the Japanese Army called the shadow assistant's work on Wang Puppet "Mei Work", which was renamed "Supreme Military Advisory Group" and still called "Mei Organization" internally.

In fact, at this time, Mei organ has become the immediate boss of Wang puppet regime.