The invention relates to a hydraulic centrifugal bearing seat. The hydraulic centrifugal bearing seat comprises a main shaft, a limiting frame and a pushing mechanism, the main shaft is clamped in the limiting frame, and the pushing mechanism is mounted at the right end of the limiting frame; and the main shaft is connected with a slide block through a Wafangdian bearing, the slide block is in clamping connection with the limiting frame through a sealing ring, the right end of the limiting frame is in clamping connection with a hydraulic shell jacket, and the hydraulic shell jacket is connected with the pushing mechanism through a sealing assembly. After adopting the structure, compared with the prior art, the hydraulic centrifugal bearing seat can structurally reduce the probably happened hidden dangers caused by change of the position between a shaft and a bearing to the lowest. Sealing installation is conducted on the position between the shaft and the bearing through the pushing mechanism, so that operation personnel are facilitated, and the alignment rate when the shaft conducts the multi-angle motion is further improved greatly. No misplacement of the shaft can further be ensured by adopting sealing installation.