As college students who are responsible for national rejuvenation, the construction of network morality is related to their overall development. In the face of college students' network moral anomies, such as network addiction, network dishonesty, bad website browsing, network words and deeds wanton and so on, it is necessary not only to be educated and edibed to guide the self-discipline of network behavior, but also to optimize the network content environment and perfect the network laws and regulations, so as to build a harmonious and healthy network home.