Is it good for us to change job frequently？ My writing: The frequency of changing job is higher than before. It is necessary to discuss the reasons of this phenomenon so that we can fully prepare for the uncertainty of job prospect. The first probable cause is that the free share of educational resources provides employees with opportunities to improve their work skills and knowledge so that they can change some better positions of employment. Extensive and free courses of leading universities are accessible on websites. Employees can watch those prerecorded courses to grasp the latest technologies or be well-informed about the development trend of a certain industry. With these advanced skills, they can easily change to a better job. The other possible reason is that thriving economy and progressive technologies stimulate the emergency of new industries and collaborations such as drone, the fifth generation of communication and electronic commerce. Besides, more people try to set up own business in this prosperous context. Therefore, there are more positions for employees to select. In order to fit into this trend, employees should pay attention to two aspects. The first issue is that they need to upgrade their skill set and technological knowledge constantly, which ensure they can satisfy the latest requirement of employment. They can fully utilize those free educational resources to promote themselves. Or they can even divide a part of their income into learning new skills. The other aspect is to hold certain amount of savings. They can learn some tips of financial management and make elaborate budget for themselves. As a result, when they are unemployed, they can safely get through this tough period.