The purpose of the project is to simulate the social media application of the Facebook system and how it receives information and deal with large and different groups of data. It is a front and backend network system where users can log in and out as well as interact with other users in the system. ER model plays a very important role in this system because there are many types of data which will be put by users themselves and automatically modified meanwhile the user manually changes them in the front end. This ensures that all the systems in the network interact very well without problems. This project is implemented using JavaScript, PHP and SQL query languages. It contains different UI pages in the system which users can operate themselves and the system will store different kinds of data in MSDB during this process.