The invention discloses a support group for gob-side entry retaining. The support group comprises gob-side entry retaining end supports and a gob-side entry retaining gangue blocking support, wherein the gob-side entry retaining gangue blocking support is connected with one of the gob-side entry retaining end supports through a gangue blocking steel plate; the gangue blocking steel plate is fixedly connected with a net laying mechanism behind the gob-side entry retaining end support, and is lapped with an upper side gangue blocking plate and a lower side gangue blocking plate of the gob-side entry retaining gangue blocking support; the gangue blocking support comprises two rows of support bodies connected by oil cylinders; a top girder and a base, of each end support, are connected by four hydraulic struts and a four-bar linkage; a protecting roof anchoring device is arranged at the upper part of the girder of each support, a rear telescopic girder is arranged at the rear part of each top girder, and a net laying mechanism is in hinged connection with the rear part of each base. By means of the support group, the problems of side gangue blocking and support in a gob-side entry retaining goaf, net laying by the end supports and anchor avoiding are solved, the requirement for speed of daily excavation of a 20-meter retaining roadway along goaf can be met, and the support group is widely applied to gob-side entry retaining of coal mines.