Due to its user-friendliness and convenience,WeChat mini program is increasingly used by different organizations in different scenarios based on the large user community of WeChat.The article takes the WeChat mini program of Xiamen University institutional repository service as a case.It mainly introduces the application requirements,main functional modules,implementation of the mini program,promotion results of the mini program,and the promotion results had been discussed and analyzed.At the end,the prospect and limitations of mini programs in institutional repository service had been mentioned.