The invention discloses a bolster robot, which comprises an outer body, a microcomputer, sensors, a function module and a power supply, wherein the sensors comprise a temperature sensor and a flapping frequency sensor, and the function module comprises a heartbeat simulation module, a voice module, a breath simulation module, a heating module and a flapping module. A plurality of function modules are arranged inside a bolster, so the bolster robot is practical, the negative emotion can also be relived, and the characteristic of multifunction is realized, wherein people can feel that the bolster robot has the life through the heartbeat simulation module, the breath simulation module, the heating module, the flapping module and an embracing module, and the aloneness can be relieved. The heating module can also help people to warm, an illumination module and an awakening module have practicability, and convenience is brought for the life. The voice module has a practical and unique sound playing function, the sound playing velocity can be regulated through collecting the beat frequency of a user for flapping the bolster robot by an action sensor, and the function can reach the hypnosis effect. The structure design of the heartbeat simulation module is simple, and the simulation effect is lifelike.