To provide a golf link-maintenance device capable of automatically and unattendedly carrying out a work to fill sand into a spot where a turf is cut off and reducing the cost of equipment by installing a course-detecting means, etc., capable of detecting course marks, to a cart.

Course marks R which indicate a course in order to guide a cart Q1 with following a predetermined course and photographing spot-marks P which indicate spots to photograph a lawn are arranged along a golf course. The cart Q1 moves automatically depending on detected signals detected by a course detecting means 51 which detects the course marks R, a photographing spot-detecting means 53 which detects photographing spot-marks P and detected signals by the course detecting means 51. In the cart, a traveling device 52 which automatically stops the cart whenever the photographing spot-detecting means 53 detects the photographing spot, a photographing means 54 which takes photos of neighboring lawn surfaces, an image data memory means 55 which holds the image data already photographed in advance and an image comparison means 56, etc., which compares the image data by the photographing means 54 with the image data corresponding to the same photographing spot and held in the image data memory means 55 are installed.