Abstract: The laboratory safety in universities is the basic guarantee for the continuous development of school education and the growth of students. At present, there are some problems in the safety management of laboratories in colleges and universities, such as the inflexible way of education, the limitation of time and space, and the inconvenience of supervision. In order to improve the safety level of laboratories, we propose to develop a laboratory safety education and examination system based on wechat applet, which can effectively assist the safety management of laboratories. we start with the system architecture and system function construction, and analyzes the importance and necessity of the six functions of the system including knowledge learning, online practice, online examination, consultation questions and answers, wrong question review and user login. Taking the typical laboratory safety education examination content of domestic universities as an example, the paper expounds the construction of system content and knowledge question base, database design connection and the realization process of each module of the system in detail. The system works well after going online, and has
strong operability in practical applications, which greatly improves the enthusiasm and learning efficiency of the experimenters. And it effectively enhances the safety awareness of the experimenters, and has certain innovation and better practical value.

Key words: laboratory safety, wechat applet, examination system, safety education