The utility model relates to a transition roller bed with an electrical lifting device for a front bridge end. The transition roller bed comprises a roller bed underframe fixed on a mounting plate, a plurality of roller shafts arranged in parallel on and rotatably connected with the upper frame of the unerframe; rollers fixed at the two ends of the roller shafts, a cover plate covering the roller shaft, a groove body formed on the cover plate near the rollers in such a manner that a portion surface of the roller protrudes upwards from the groove body, transmission chain wheels fixed at the two ends of the roller shafts, a roller bed motor arranged on the underframe on one side of transmission chain wheels, a drive chain wheel fixed on the output shaft of the roller bed motor, transmission chains wound on the drive chain wheels and the transmission wheels, a bottom plate arranged below a mounting top plate, and an electrical lifting device arranged on the bottom plate for mounting a top plate. When in use, the transition roller bed has excellent durability, and can achieve transition of workpieces between two roller beds with different heights. In addition, the transition roller bed can meet the requirement for lifting workpieces with different weights without large vibration and noise in the lifting process.