Abstract: Low-voltage distribution network is the key link to improve customer service levels,but the weak data acquisition link in low-voltage platform area causes the‘black box’state in the data level,which seriously restricts the digital and intelligent development process of low-voltage distribution network.Firstly,taking the construction and application of Shandong low-voltage distribution Internet of things as an example,the status quo of data acquisition of distribution area fusion terminal and the data acquisition of electric energy meter on the marketing side was introduced,the existing problems of data acquisition and transmission in the current station area was analyzed,and the optimization scheme of data acquisition in the low-voltage station area considering the current technology application and construction cost was put forward.Then,based on the data collected by the intelligent fusion terminal,the data application of low-voltage substation at present was analyzed from three aspects :lean operation and inspection of distribution network equipment,high-quality service of marketing customers,new energy consumption and new load management.Finally,the value of data was deeply mined,and the application direction of low-voltage distribution network data was proposed from two aspects of improving the internal construction of power grid enterprises and serving the economic and social development.