The invention belongs to the technical field of rigid supports of bearing parts, and particularly discloses a bearing seat with a cooling function. The bearing seat comprises a bearing, an upper fixing base, a lower fixing base, a water tank, a mounting part and a cooling part. The water tank is located on one side of the fixing base. A through groove is formed in the mounting part. A cavity is formed in the cooling part. The rotary block is rotationally connected into the cavity. A rotary shaft is arranged on the rotary block. One end of the rotary shaft penetrates through the cooling part and is located in the through groove. A support is fixed to one side of an inner ring of the bearing. A clamping groove is formed in the support. A plurality of sliding grooves are formed in the rotaryblock. Rotary pieces are slidably connected to the sliding grooves. Springs are connected between the sliding grooves and the rotary pieces. Two water pipes are arranged in the mounting part. One endsof the two water pipes communicate with the two opposite sides of the cavity correspondingly. The other ends of the two water pipes extend into the water tank. Through the bearing seat, heat generated by the bearing during operation can be taken away, the temperature of the bearing and the temperature of the bearing seat are lowered, and the situation that normal operation of the bearing is influenced due to temperature increase is avoided.