Excavator and control method thereof

The invention provides an excavator and a control method thereof, and relates to the technical field of mechanical equipment. The excavator comprises a platform, a movable arm and a driving assembly,one end of the movable arm is a hinged end, the other end of the movable arm is a lifting end, the hinged end is hinged to the platform, and an anti-collision assembly is arranged at the lifting end and used for detecting the distance between the anti-collision assembly and a obstacle at the top of the movable arm; the driving end of the driving assembly is connected with the movable arm and usedfor driving the movable arm to rotate around the hinged position. The excavator further comprises a processor, the anti-collision assembly and the driving assembly are both connected with the processor, the anti-collision assembly transmits a detected interval signal to the processor, and when the interval value d represented by the interval signal is not larger than a safety interval L set by theprocessor, the processor c