Automatic drilling device

The embodiment of the utility model provides an automatic drilling device. The automatic drilling device comprises a lifting assembly and a drilling assembly. The lifting assembly comprises a lifting platform and a lifting driving part, the lifting platform is used for bearing the drilling assembly, the lifting driving part is used for driving the lifting platform to ascend or descend, and the drilling assembly can drill holes in the cable trench wall. According to the automatic drilling device, the lifting assembly is used for driving the drilling assembly to drill holes in different heights of a cable trench, the automatic drilling device is placed at different positions in the cable trench, drilling at different horizontal positions can be achieved, and therefore the construction range of the automatic drilling device can cover all positions, needing to be drilled, in the cable trench; generally speaking, the automatic drilling device can replace manpower to complete the drilling operation of the cable tre