The invention discloses an indoor region partitioning method and a sweeping robot. The indoor region partitioning method includes: allowing the sweeping robot to use a magnetic field sensor arranged on the bottom thereof to detect a magnetic bar which is arranged on a floor under a room door in advance; and determining a position of the magnetic bar in an environment map, and determining virtual boundary positions of two cleaning regions according to the position of the magnetic bar. Positioning is achieved by using the magnetic bar, region partitioning is reasonable, the size of the magneticbar is small and can be set for long time; and the indoor region partitioning method and the sweeping robot are easy to operate, and can reduce the cost.