A portable tobacco leaf compression device comprises a frame body, a pressure plate, a pressing rod assembly and a movable connection rod assembly. The frame body comprises a bottom plate, a fixed side plate and a movable side plate, rope threading holes are formed in the movable side plate, rope hanging hooks are arranged on the outer side of the fixed side plate right facing the movable side plate, and two vertical rods are arranged at the top end of the fixed side plate. The pressing rod assembly comprises a pressing rod, a pressing rod rotating mechanism and a pressing rod locking mechanism, and the pressing rod rotating mechanism is arranged between the two vertical rods. The pressure plate comprises a central pressing plate, a fixing frame and a side pressing plate, the pressing rod is connected to the pressure plate through the movable connection rod assembly, the pressing rod rotating mechanism comprises a rotating shaft and a clamping sleeve with which the rotating shaft is sleeved, a pressing rod clamping mechanism comprises a ratchet wheel and a pawl, the pressing rod rotating mechanism in another embodiment comprises a metal tubular pipe and a rotating sleeve pipe, and the pressing rod locking mechanism in another embodiment comprises a chain and a hook. By the adoption of the pure mechanical structure, the portable tobacco leaf compression device is driven by manpower, is low in cost, convenient to operate and move and suitable for being used by retail tobacco growers.