(University Graduation Thesis_ Gobang game design based on Android - [Abstract] This paper mainly describes the design of a Gobang game based on the smartphone Android, using the object-oriented programming language eclipse as the development tool. Gobang originated from one of the traditional black and white chess in ancient times. It can not only enhance thinking ability and intelligence, but also is rich in truth, which is conducive to self-cultivation. In this system, there are two modes of man-machine combat and human to human combat. Man machine combat implements some simple algorithms, and everyone only judges the winners and losers. It is very different from the Gobang design of javame. The original Android is a full contact way, and the operation is very simple.)