The type machine, interchangeable cassette mower with the option to install a variety of different heads, including scarifier, vertical mower, brush, spiker and slitter Machines, as well as blade lawn mowers, can replace accessories in a short time. Lawn maintenance single-joint reel lawn mower has a sturdy modular structure and a large-capacity grass box. The cutting height can be easily adjusted, and the line of sight is good for accurate stripe trimming. It can reduce the thatch layer, improve the turf, and help the lawn grow better. Safety seats can be added and various attachments can be switched, which is convenient and time-saving. One machine can be used for multiple purposes, and is suitable for mowing large and small lawns.