Abstract: To effectively control the deformation of soft rock roadway of Xiaokang Coal Mine, the closed support technique of bolting-shotcreting and U-shaped steel retractable support and backfilling support for circular roadway is suggested according to horizontal stress and the characteristics of strong creep soft rock. The support parameters of pre-stressed anchor, U steel and backfilling support are obtained. Taking S₂S₂ haulage roadway of Xiaokang Coal Mine as an example, the deformation of circular roadway with closed support during roadway tunneling is analyzed by field measurement, and is compared with the deformation of the original open supporting roadway. It was concluded that the surface convergence and convergence velocity of circular roadway tends to decrease obviously under circular roadway closed supporting condition. The control effect of the technique of support of bolting-shotcreting and U steel combination support network and support backfill of closed-support of circular roadway is very obvious.