Method and system for automatically returning to original position after abnormal shutdown of industrial robot

The invention discloses a method and system for returning an industrial robot to an original position after abnormal shutdown, and the method comprises the steps: storing each working path of the robot as a plurality of sub-task programs, numbering the plurality of sub-task programs and point locations in each sub-task program, the method comprises the following steps: adding a motion type, a program number and a point position number on the basis of a basic motion instruction to form a self-defined motion instruction, calculating a deviation value of an interruption point position relative to a working path according to first position coordinate data of the interruption point position and the self-defined motion instruction when a robot shuts down abnormally and receives an in-situ returning instruction, and according to the deviation value and the state of the robot end effector, planning a path for the robot to return to the original position. According to the method, the subtask program can be updated and