Abstract: In the open network environment，the security problem has already been an important factor that restricts the applicative problem in mobile agent system.After analyzing the security problems and current status of research work，the paper proposes a security design scheme based on the trusted third party to construct an overall security frame of mobile agent in the Internet.It provides an available method to solve the secure problem in the mobile agent field.

摘要： 在开放网络环境中，安全性问题已经成为移动Agent应用的重要因素。通过对Agent的安全问题及其研究现状的分析，提出了一种基于可信任第三方的移动Agent的整体安全设计方案，为解决移动Agent问题提供了一个可行的方法。