Multi-robot are difficult to accurately locate in complex indoor space environments, with high real-time requirements and the inability to utilize satellite signals, thus limiting their application range. This article studies relevant algorithms based on the demand for indoor localization solutions in open intelligent manufacturing factories, existing UWB localization methods and principles. By measuring the distance value between the tag and the base station, and then using these distance values to calculate the tag coordinates, localization function can be achieved. Designed a localization scheme, built an indoor multi-robot UWB localization system, achieved precise positioning, and successfully verified the effectiveness of its algorithm. By combining multi-robot motion control technology with UWB positioning, it can be applied to indoor logistics transportation, achieve automatic data collection, and reduce costs and increase efficiency.