The invention discloses a rapid detachable bearing pedestal device of a transition roller platform of a calendering machine. The rapid detachable bearing pedestal device comprises a support and bearing pedestals. Multiple roller installation grooves are formed in the support, and openings are formed in the upper ends of the roller installation grooves. The roller installation grooves are rectangular grooves which are vertically formed, and arcs which are matched with rollers are arranged at the lower ends of the roller installation grooves, and kidney-shaped holes are formed in the two sides of each roller installation groove. Each bearing pedestal comprises an outer barrel and an inner barrel. Each inner barrel is arranged in the corresponding outer barrel. An annular cooling end cover isarranged at the front end of each outer barrel, a rear end cover is arranged at the rear end of each outer barrel, and a cavity formed among each outer barrel, the corresponding inner barrel, the corresponding cooling end cover and the corresponding rear end cover serves as a cooling cavity. According to the rapid detachable bearing pedestal device of the transition roller platform of the calendering machine, the existing oil cooling mode is reserved, the heat generated by bearings is directly brought away by the cooling water in the cooling cavities, and the cooling effect is improved. Meanwhile, the heights of the bearing pedestals can be rapidly and conveniently adjusted, and the repair efficiency is improved.