The utility model discloses a synchronization-type electro-hydraulic flat gate relating to the structural field of the coal bunker lower loading gate. The synchronization-type electro-hydraulic flat gate comprises a hydraulic power unit, a gate frame, an inserting plate, and two oil cylinders. The two oil cylinders are respectively connected with the hydraulic power unit, and are respectively disposed on two sides of the gate frame. Telescopic ends of the two oil cylinders are respectively connected with the inserting plate, two sides of which are respectively detachably connected with cylindrical rollers by connecting shafts and nuts. Each of the rollers is contacted with the gate frame. The synchronization-type electro-hydraulic flat gate is advantageous in that by disposing the cylindrical rollers on the two ends of the inserting plate, the rollers are tightly contacted with the gate frame during the motion; when the motion speeds of the two oil cylinders are different, the motion speeds of the two oil cylinders can be synchronized under the action of the cylindrical rollers, and therefore the gate can be opened and closed normally; the synchronization-type electro-hydraulic flat gate adopts the mechanical synchronization, the structure is reasonable, the processing is simple, and the use is convenient.