A hydraulic shaping device comprises a working platform used for arranging a workpiece, a fixing device used for fixing the workpiece and a thrust system arranged at two sides of the working platform. The thrust system comprises a squeezing working piece which at least partially extends into the inner cavity of the workpiece and is characterized in that: the thrust system also comprises a motor and a pushing component used for transferring the power of the motor to the squeezing working piece; the pushing component comprises a first connecting piece and a second connecting piece which are mutually connected through a transmission; the first connecting piece is joint connected with the output shaft of the motor through the transmission; the second connecting piece is fixedly connected withthe squeezing working piece. The invention is a hydraulic shaping device with a thrust system which is conveniently controlled and has the high precision.