The experiments mainly focus on estimating the water jet performances and the breaking oil shale efficiencies of the jet devices, so as to compare the different jet devices and propose the parameters of borehole hydraulic mining for oil shale. In fact, the jet devices' water jet performances can be evaluated by the striking force and the oil shale breaking effect of the high-pressure water jet produced by itself. Under the same experimental conditions, the greater the striking force or the oil shale breaking effect more significant, the better the water jet performance of the jet device. Moreover, the experiment of breaking oil shale can also be used for proposing the parameters of the borehole hydraulic mining for oil shale. Therefore, the main aim of the experiments are to compare the striking forces and the breaking oil shale effects with the different jet devices.