With the rapid improving of embedded technology in the performance and function, Web technology has become a key technology in the embedded application field, so it is of great applicative value to study on the realization technology of Web technology in embedded system.This paper put forward some solutions for the problems during the embedded Web server design, such as replacing thread to process to solve the resources problem, and using close-loop access strategy and identity authentication technology to solve the security problem. Some methods are proposed by analyzing the designing method of the embedded Web server available, which improve the server's performance. Through analyzing and researching on embedded database SQLite, this paper accomplishes the application of embedded database in embedded Web server, and proposes a design project of embedded Web server, which incorporates a small database management system based on ARM. And then it achieves dynamic interaction with client by CGI and realizes the application of the embedded Web Server in the embedded Access Control System successfully.The result of the experimentation shows that the requirements of the embedded Access Control System's remote maintenance can be satisfied by the embedded Web and database technology.