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1. A method for calibrating a sensor of an excavator, characterized by comprising the following steps: /n Park the excavator on a horizontal ground, and make a horizontal line parallel to the horizontal ground from the hinge point between the boom of the excavator and the platform; /n According to the horizontal line, control the hinge point between the boom and the bucket arm of the excavator to be on the horizontal line, and calibrate the boom angle sensor. /n

2. A method for calibrating a sensor of an excavator, characterized by comprising the following steps:

Park the excavator on the horizontal ground, and make a horizontal line parallel to the horizontal ground from the hinge point between the boom of the excavator and the platform;

According to the horizontal line, and calibrating the boom angle sensor.

3. The calibration method of excavator sensor according to claim 1, characterized in that the calibration method further comprises the following steps:

Make a vertical line perpendicular to the horizontal ground from the hinge point between the boom and the bucket arm of the excavator;

According to the vertical line, and calibrating the arm angle sensor.

4. The calibration method of the excavator sensor according to claim 1, wherein the calibration method further comprises the following steps:

Make a vertical line perpendicular to the horizontal ground from the hinge point of the rocker and connecting rod of the excavator;

According to the vertical line, and calibrating the rocker angle sensor.

5. A calibration device of an excavator sensor, which is used for executing the calibration method of the excavator sensor according to any one of claims 1 to 3, characterized in that the calibration device of the excavator sensor comprises an execution unit and a control unit, wherein:

The execution unit is used to make a horizontal line parallel to the horizontal ground, a vertical line perpendicular to the horizontal ground, and a vertical line perpendicular to the horizontal ground from the hinge point between the boom and the platform of the excavator, respectively.