The invention discloses a manually operated clutch torque increasing device which is connected to an output end of a driving unit. The manually operated clutch torque increasing device comprises a box body, a transmission shaft, a centrifugal revolving block, a translational end cover, eccentric mechanisms, a travel control panel, a chain, a first reset part and a reset spring. The box body is fixedly connected to the output end of the driving unit. One end of the transmission shaft is connected to an output shaft of the driving unit, and the other end of the transmission shaft penetrates the box body and extends out of the box body. Rotational speed control of a transmission structure part is realized by the self structure of the manually operated clutch torque increasing device, so that the whole process is completed at a safe position, such as a lift car, climbing operation of an operator is not required, the workload of the operator is reduced when the operation safety of the manually operated clutch torque increasing device is improved, the manually operated clutch torque increasing device is simple and convenient to operate, the time is saved, and the whole design level of the industry is improved. The manually operated clutch torque increasing device is applied to a construction machine, such as an industrial lift, and is mounted on the driving unit of the construction machine such as the industrial lift, and the rotational speed can be automatically controlled to further control the operation speed of the manually operated clutch torque increasing device.