The invention discloses a fabric winding driving device composed of multiple accessories for a computerized flat knitting machine. The device comprises side supporting plates, a bearing round cover, aservo motor, a shaft sleeve block, a round block, first air cylinders, long grooves, pressing bar blocks, a transmission column, a column groove, a sealing cover, strip-shaped penetrating holes, strip-shaped supporting blocks, an inflating nozzle, a square opening sliding hole, a first bearing, a second bearing, connecting sliding blocks, guide sliding grooves, a four-edge long rod, second air cylinders, connecting sliding grooves, roller blocks, a cylindrical air bag, a strip-shaped rubber sheet and containing grooves. According to the device, the design is reasonable, the function of addinga fabric winding structure and a winding drum fixing structure at a fabric outlet of a traditional computerized flat knitting machine is realized, the mode that a traditional long-force air-expansionshaft structure is used for supporting a winding drum is changed, the fabric primary winding end can be conveniently and fixedly tightened on the winding drum structure, so that the winding drum structure can be driven to stably rotate, the situation that the fabric flees from the winding drum structure can be avoided, and the function that the winding drum structure with wound fabric can be conveniently and quickly disassembled can be realized.