The invention discloses a new cross side dumping coordinated technology and a new supporting technology for an end region of a fully mechanized working face. The head of a rear conveyer is changed to a cross side dumping arrangement mode, and a motor of the rear conveyer is arranged in a smooth trough, so that the rear space of a transition support is not occupied any more, the center distance between the heads and the tails of the front and rear conveyers is consistent with the center distance of the middle sections, meanwhile, the unloading height of the conveyers is reduced, and the coal caving effect of the heads and the tails and the recovery rate of coal resources are further improved; and because the transition bracket is in the same structural form as a middle bracket, the category of hydraulic brackets of the working face can be reduced, and effective coal caving of the transition section of the top coal caving working face can be realized. A tunnel tail bracket is arranged at the rear part of a transferring machine, so that protection of the rear part of the transferring machine and smooth push of the transferring machine are realized; meanwhile, side guard plates which can be hinged are arranged on the lateral surfaces of the transferring machine, so that the rear gangue is prevented from falling into the tunnel tail bracket; end brackets are arranged at two sides of the transferring machine and have asymmetrical structures, a top beam has a step-type top beam structure, and the end brackets are matched with the tunnel tail bracket of the rear part, so that the stability of a top plate in the cross side dumping coordinated end region of the fully mechanized working face is maintained, and safe and efficiency recovery of the fully mechanized working face is realized.