A latching mechanism of a battery cover assembly (100) is provided. The battery cover assembly includes a battery cover (20) and a housing (10). The latching mechanism includes a limiting mechanism, a hinged mechanism, at least one latching portion (133), and at least one latching arm (28). The limiting mechanism is configured to prevent the battery cover from accidentally detaching from the housing. The hinged mechanism is configured to facilitate both rotation and sliding of the battery cover relative to the housing. Each latching portion is formed on the housing, and each latching arm is formed on the battery cover. The latching arm elastically engages with a respective latching portion in such manner that the battery cover is latched to the housing.