The invention relates to a roller skate. The roller skate comprises a shoe body, a connecting frame for supporting the shoe body, a plurality of wheels and a brake, and the wheels are connected to thebottom of the connecting frame through bearings; an inner container is arranged in the shoe body; a charging interface, a switch and a light sensor are arranged on the surface of the shoe body; a temperature sensor is arranged between the inner container and the shoe body; a heating piece is arranged at the top of the connecting frame; a motor for driving the wheels and damping pieces arranged between the bearings and the connecting frame are further arranged on the connecting frame; an LED lamp, a battery and a single-chip microcomputer are further arranged on the connecting frame; the battery supplies power to the light sensor, the temperature sensor, the single-chip microcomputer, the LED lamp, the heating piece and the motor; the charging interface is connected with the battery; the switch, the light sensor and the temperature sensor are connected with an input port of the single-chip microcomputer; the LED lamp, the heating piece and the motor are connected with an output port ofthe single-chip microcomputer. The roller skate is high in safety performance, high in intelligent degree, diversified in function, reasonable in overall design and suitable for application and popularization.