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) comprises a motor (121, 421, 521, 621, 954, 962), the lawn mower (100, 400, 500, 900) has an automatic line loading mode, under the automatic line loading mode, the motor (121, 421, 521, 621, 954, 962) drives at least one of the line shaft (111, 211, 311, 411, 511, 611, 811, 811, 941, 941, 951) and the line holding member to enable the line shaft (111, 211, 311, 411, 511, 611, 811, 811, 941, 941, 951) and the line holding member to rotate oppositely so as to automatically wind the mower rope (101, 401, 501, 701) on the line shaft (111, 211, 311, 411, 511, 611, 811, 811, 941, 941, 951). The operating method comprises the mower rope (101, 401, 501, 701) passing through or bypassing the line holding member to be inserted into the line shaft (111, 211, 311, 411, 511, 611, 811, 811, 941, 941, 951) and starting the motor (121, 421, 521, 621, 954, 962) to enable the line shaft (111, 211, 311, 411, 511, 611, 811, 811, 941, 941, 951) and the line holding member to rotate oppositely. T
