Disclosed are a lawn mower (100, 400, 500, 900) and an operating method and a control method therefor, the lawn mower (100, 400, 500, 900) comprising a mower head (110, 210, 310, 410, 510, 610, 710, 810, 810', 810", 913, 940, 940', 950, 961), a driving device (120, 420, 520, 620) for driving the mower head (110, 210, 310, 410, 510, 610, 710, 810, 810', 810", 913, 940, 940', 950, 961) to rotate, and an operating device (130, 430, 530, 730) for a user to operate to control the driving device (120, 420, 520, 620). The mower head (110, 210, 310, 410, 510, 610, 710, 810, 810', 810", 913, 940, 940', 950, 961) comprises a line shaft (111, 211, 311, 411, 511, 611, 811, 811', 941, 941', 951) and a line holding member, wherein the line shaft (111, 211, 311, 411, 511, 611, 811, 811', 941, 941', 951) is used for winding a mower rope (101, 401, 501, 701), and the line holding member forms a line holding structure for the mower rope (101, 401, 501, 701) to pass through or bypass; the driving device (120, 420, 520, 620) com
