Anti-jacking system and method for excavator

The invention discloses an anti-jacking system and method for an excavator. Rotation angle information of all joints of a big arm, a bucket rod and a bucket of the excavator is obtained through an angle encoder; the position of the binocular camera on the bucket rod is determined according to the rotation angle information, and depth information of the excavation area is obtained in real time through the binocular camera; a depth image in the depth information is processed, and whether the excavator is in a visual jacking state or not is judged according to the processing result; the control current of a big arm oil cylinder, a bucket rod oil cylinder and a bucket oil cylinder is collected in real time through a controller, and whether the excavator is in a working state or not at present is judged; judging whether the excavator is in a jacked state or not according to the current visual jacking state result and the working state result in combination with the rotation angle information of each joint of the e