Test device for simulating slope instability process of slope under action of multidirectional seepage

The utility model relates to a seepage simulation experiment device, and discloses a test device for simulating the slope instability process of a slope under the action of multidirectional seepage, which comprises a test tank with adjustable gradient, a slope surface runoff water supply device arranged at the higher end of the test tank, an underground seepage water supply device arranged below the test tank, and a slope surface runoff water supply device arranged below the underground seepage water supply device. The test tank comprises a bottom plate, a water seepage opening is formed in the bottom plate of the test tank, the underground seepage water supply device is communicated with the test tank through the water seepage opening, a seepage direction control pipe is installed at the water seepage opening through a sealing ring, and the included angle between the seepage direction control pipe and the bottom plate is fixed through a slope model arranged on the bottom plate. According to the utility model