Synchronous hydraulic cylinder control system and crane

The utility model discloses a synchronous hydraulic cylinder control system, which comprises a plurality of hydraulic cylinders (100) connected in parallel; each hydraulic cylinder (100) is connected to a rod cavity oil path communicated with a rod cavity and a rodless cavity oil path communicated with a rodless cavity; the rod cavity oil path and the rodless cavity oil path of each hydraulic cylinder (100) are communicated with a pressure oil path and an oil return path through a reversing valve (101); the synchronous hydraulic cylinder control system further comprises a flow control device with a plurality of flow control components (105); the plurality of flow control components (105) of the flow control device are respectively arranged in the rod cavity oil path and/or the rodless cavity oil path of each hydraulic cylinder (100); a crane comprises a balance weight and a balance weight lifting mechanism for elevating or lowering the balance weight, wherein the balance weight lifting mechanism comprises the synchronous hydraulic cylinder control system disclosed by the utility model; and piston rods of the plurality of hydraulic cylinders (100) of the synchronous hydraulic cylinder control system are connected with the balance weight.