To provide a course for half pipe competition of a snowboard for accurately and rapidly preparing a source surface conforming to a standard, and the servicing device and method of the course.

The servicing device and method of the course for half pipe competition consist of a course for half pipe sport where a guide rail for guiding a servicing device or the like for maintaining the course is installed around the outer periphery of the course for the half pipe competition snowboards, an automatic traveling servicing machine having a servicing means that is a device for maintaining the course for the half pipe competition of snowboards and forms a snow layer course surface, a slider that is provided so that it can travel on the guide rail, and a connecting device for connecting the servicing machine and the slider.