A method, an apparatus and a system for determining a region attribute, and an electronic device. The method includes: identifying a marker line in a target map (S101), wherein the target map is a map of a to-be-cleaned target scene, which an intelligent cleaning device (1420) relies on during a cleaning process; determining an enclosed region (Z1, Z2, Z3, Z4, Z5) and an unenclosed region with a first position as a reference point in the target map (S102), based on the identified marker line (L1, L2, L3, L4, L5) and an auxiliary object in the target map, wherein the auxiliary object includes a map boundary and an obstacle, and the first position is a position of a preset reference object in the target map; determining the enclosed region (Z1, Z2, Z3, Z4, Z5) as a user-defined cleaning region for the cleaning process of the intelligent cleaning device (1420); and determining the unenclosed region as a normal cleaning region for the cleaning process of the intelligent cleaning device (1420) (S103).