The invention discloses a subminiature integrated synchronous jacking device in the technical field of jacking. The subminiature integrated synchronous jacking device comprises protection
machine shells, the outer walls of the protection
machine shells communicate with oil tanks or embedded oil tanks, and integrated jacking hydraulic oil cylinders are arranged in the protection
machine shells. An emergency rotary knob, a speed regulating valve, a safety overflow valve, a one-way valve, a
hydraulic pump, an electromagnetic
reversing valve, an oil suction pump, a coupler, an
oil pump and an oil return pump are sequentially arranged on each protection machine shell, each protection machine shell is electrically connected to a jacking device controller, the jacking device controllers are connected to ejecting devices with the same points through wired and
wireless networks, the synchronous jacking control is performed, the installation is convenient, the time is saved, the
assembly form is simpler, the circuit control is simpler, the miniaturized jacking device operates more stably, the maximum height error among the synchronous jacking devices is 0.05
millimeter, the height synchronous positioning can better protect larger and longer components, and the requirement for maintenance of a larger bridge floor is better met.