The utility model discloses a portable sprocket chain drive dolly, including upper portion dolly, lower part dolly and initiative frame, the initiative frame is the frame of I shape, and the bottom intermediate position of initiative frame is fixed with the chain fixed block, is fixed with drive chain on the chain fixed block, the upper portion dolly includes four dolly wheels and two blocks of upper portion dolly curb plates, and the dolly wheel is installed on upper portion dolly curb plate upper portion inboardly, installs the highly the same of dolly wheel on two dolly wheels and the same upper portion dolly curb plate on every block of upper portion dolly curb plate, is equipped with upper portion dolly holder between two upper portion dolly curb plates, still is equipped with the clamp bolt on the inboard of upper portion dolly curb plate, the lower part dolly includes two blocks of lower part dolly curb plates. The utility model discloses installation to the drive dolly is optimized, can simplify the regulation procedure after the optimization, extension equipment practical life, and the reduce the fault point has alleviateed on -the -spot workman's manipulation strength.