The present disclosure provides a virtual host migration system, a virtual host migration method, a computer apparatus and a readable storage medium. The system at least includes: a first operation environment device and a second operation environment device, the first operation environment device is loaded with a virtual host of a first virtual structure; the second operation environment device is configured to acquire a file container acceptable by the second operation environment device, and load a virtual host of a second virtual structure according to the file container. In the present disclosure, the first operation environment device is loaded with the virtual host of the first virtual structure, and the second operation environment device acquires the file container acceptable by the second operation environment device and loads the virtual host of the second virtual structure according to the file container, thereby realizing virtual host migration across platforms.