The invention discloses an automatic moving and rolling brush roller device for a BGA (Ball Grid Array) substrate cleaning device. The automatic moving and rolling brush roller device comprises a brush roller and a rack, wherein long blocks are fixed to the inner side walls of left and right side plates of the rack, long guide grooves of which the cross sections are circular are formed in the middle parts of the two long blocks, cylindrical sliding blocks are inserted into the long guide grooves, moving grooves are formed in the opposite wall surfaces of the two long blocks, the moving grooves communicate with the long guide grooves, self-lubricating wearing strips are embedded and fixed into grooves which are formed in the top surfaces and bottom surfaces of the moving grooves, hinged shafts are arranged on both ends of the brush roller, both ends of the hinged shafts pass through the moving grooves and are hinged to the cylindrical sliding blocks, push blocks are hinged to the hinged shafts, at least two push cylinders are fixed to the outer wall surface of a back wall plate of the rack, and push rods of the push cylinders pass through the back wall plate of the rack and are fixed to the push blocks. When the push cylinders push and pull, the brush roller is in a rolling state, the scratching of the brush roller to a BGA substrate is reduced, and the cleaning effect is guaranteed.