Agent-oriented programming is an important technology for autonomic computing and grid computing. Advances in agent technology depend on improving frameworks for building and supporting agent societies. Experience suggests that first generation multi-agent systems focus only on some aspects and fall short of providing a rapid prototyping development environment for the systematic analyze, design, construction and deployment of agent-oriented applications. This paper presents MAGE, an agent-oriented programming environment, with complete tools to support agent-oriented requirement analysis, design, development and deployment. It also gives some comparison between MAGE and other multi-agent platforms with particular focus on methodology. At last, this paper gives some applications on MAGE.