In order to make a deep-study of longcable precontrol roof,continuous slice mining and behaviour regularity.of stope ground pressure when using fill stoping with tailings ,taking the bolt supporting roof and the combined supporting roof of both. bolts and cables in 316# test stope in Aoxi mining district of Xiangxi gold mine as a contrast ,the author made the simulation test by using similar materials. Based on the test results ,the stability of stope roof under coditions of the mining method and roof support mentioned above can be analyzed and examined.