An all-day domestic robot comprises a robot body, wherein the head of the top end of the robot body is provided with a camera and can emit light, electromagnetic wave sensors, infrared ray short sensors and CO2 and formaldehyde sensors are arranged in the front of and behind the robot body respectively, a smog sensor, a CO sensor, an infrared ray heat sensor, a dust sensor and a temperature and humidity sensor are arranged on the robot body left and right, and an ultrasonic nebulizer, a dehumidification cooler, an air purifier, a dust collector, a control circuit board, a touch display screen and a turning keyboard are arranged inside the robot body. The all-day domestic robot has the functions of dust collecting, dust removing, sweeping, disinfecting, organic-matter degrading, temperature and humidity sensing and regulating, detecting and cleaning of CO, CO2, formaldehyde and other poisonous gas, particulate matter sensing and removing, lighting, free travelling, action charging, infrared ray sensing, all-dimensional camera shooting, digital storage, language communication and the like, and the all-day domestic robot is controlled through an intelligent microcomputer, can perambulate indoor security and protection 24 hours, can conduct accurate identification, send site video and give an alarm when a fire disaster occurs and external articles invade, and is stable in performance, convenient to operate and high in work efficiency.