Because of the current Internet is full of varius spam. Through the practical operation of the case company, this study is for the community websites to understand how the robot attacking the Weibo site (hereinafter in referred to as the robot) operates. This case study adopts the case study method, selects Weibo as the object, collects and analyzes, and conducts adjustments. There are ten steps to conduct the questions and answers. Through this case study, it is found that the social network's anti-blocking are too simple, so that the zombie account can find the vulnerability to create an account. After the account is created, the case company trains the account by simulating the real user and crawling the target through the crawler. The list of advertisements was then disguised as normal user attention and comments, allowing the robot to run smoothly. In response to these conditions, this study provides some suggestions for the community website for reference.