Compression type garbage truck

The utility model relates to a compression garbage truck which comprises a hydraulic system and a filler assembly. The hydraulic system is used for providing hydraulic power for overturning of the filler assembly; the hydraulic system comprises a hydraulic oil tank, a hydraulic pipeline, a power source, a control mechanism, an oil cylinder, an electromagnetic relief valve, an electromagnetic reversing valve and a one-way throttle valve; and the hydraulic pipeline is communicated with the hydraulic oil tank. According to the hydraulic system of the compression garbage truck, under the driving of the power source, the electromagnetic reversing valve is used for controlling the telescopic action of the oil cylinder, the one-way throttle valve is used for controlling the speed of the oil cylinder in the withdrawing process, and the electromagnetic overflow valve is controlled by the control mechanism, so that the oil cylinder descends by utilizing the dead weight of the filler assembly in the withdrawing process;