Microblog has become part of our life. It is very convenient for people to express their feeling instantly at any time. Besides, it provides a chance for people to release their inner stress. By showing their heartfelt emotions on the microblog, their friends may also know about their condition and can offer timely comfort. However, microblog can also be potentially dangerous as it may give away people’s privacy and other significant information. All in all, microblog provides us with some concerns as well as comfort and large quantities of information, so we should be careful while using it.