The indoor spraying robot is an automatic spraying robot for emulsion paint, which is widely used in indoor emulsion paint construction in houses, apartments, hotels, offices and other scenarios. The spraying range covers indoor walls, bay windows, beams, ceilings and bulkhead and other structures.With primer, topcoat spraying, automatic path planning, parameter control, APP remote monitoring, off-line simulation analysis and other functions, the robot can realize the automatic spraying of primer and topcoat through fully automatic operation mode. The self-spraying operation has been realized. The product has the characteristics of high operation efficiency, high spray coverage rate, and high paint utilization rate.