Abstract: With the continuous updating of educational ideas and the continuous development of computer science and technology, the traditional examination methods have been unable to meet the needs of teachers and students. The examination system based on the network emerges as the times require, not only saves a lot of manpower and material resources, but also improves the flexibility of examination. With the rapid development of the Internet, the construction of campus information has become a new hot spot in the network application. As a part of the construction for campus information, the online examination system is becoming popular. The online examination system based on B/S breaks through the limitation of the area and is loved by many teachers and examinees. The way of online examination has many advantages, such as convenient and flexible, easy to manage and so on, so that information technology can be better integrated into education and teaching, is in line with the trend of the development for education information and is the inevitable trend of education development. 1. Functional Requirements Analysis Compared with the traditional examination mode, online examination system based on B/S can dynamically manage various examination information, including automatic generation of various test papers, automatic calculation of test results and so on. At the same time, it also has a high degree of flexibility, wherever the students are, they can visit the online examination system through the browser. The main goal of the online examination system is to realize the system to send the question and examination automatically. After the examination is over, the system can also read the paper under a certain plan according to the reference answer. To achieve this goal, we need to systematically and effectively manage examination questions, automatically generate examination papers, and retrieve papers on time. The analysis of the specific functional requirements for the system is as follows: (1) User login Student login: enter student ID, password and verification code correctly, log in, and enter the student examination page. Teacher login: enter the sign, password and verification code correctly, log in, enter the teacher management page, the course information management, examination question bank management and artificial marking examination papers. Administrator login: enter the user name, password and verification code correctly, log in, and enter the backstage page. (2)Backstage management User management: manage student information, teacher information and administrator information, including the operation of adding, modifying, deleting, and querying. Professional information management: manage student profession, including the operation of profession adding, modifying, deleting, querying. Examination subject management: according to the profession to divide examination subjects, including the operation of adding, modifying, deleting, querying for professional examination subjects, and set the prescribed examination time, only in the prescribed time test time for the 547 Copyright © 2018, the Authors. Published by Atlantis Press. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). Advances in Social Science, Education and Humanities Research (ASSEHR), volume 206 2018 International Conference on Advances in Social Sciences and Sustainable Development (ASSSD 2018)