Control system for work machine, work machine, management system for work machine, and management method for work machine

A control system for a work machine, comprising:

• a position detecting device configured to detect a position of a work machine that travels on a travel route;
• a non-contact sensor configured to detect, in a non-contact manner, an object beside the travel route on which the work machine travels;
• a map data generating unit configured to generate management map data indicating a map of a management area in a mine on the basis of detection data obtained by the position detecting device and detection data obtained by the non-contact sensor;
• a first storage unit configured to store divided map data pieces each indicating a map of a divided area set by dividing the management area;
• a second storage unit different from the first storage unit;
• an update unit configured to determine, on the basis of detection data obtained by the position detecting device, specific map data from among a plurality of divided map data pieces stored in the first storage unit, and cause the second storage unit to read the specific map data;
• and
• a position calculating unit configured to calculate a position of the work machine by matching the specific map data read into the second storage unit with detection data obtained by the non-contact sensor.