广州市教育部门搭建了“数字教育城”，可以将各学校的应用系统通过单点登录整合到其中，以实现较高级别 的资源共享。但由于各学校的实际情况差异较大，整合过程必然会存在一些客观问题。本文探讨了广州市中职、中小学在接 入广州市数字教育城单点登录系统中可能遇到的部分特殊问题，尤其对已经有自己的单点登录方案的学校如何进行异构对 接，提出了比较适合现阶段实际情况的良好解决方案。

The Guangzhou Digital Education City has been set up by the Education Department of Guangzhou, and the application system of each school can be integrated through SSO to realize the sharing of higher level resources. But because the actual situation of each school is quite different, the integration process is bound to have some objective problems. This paper discusses on some special problems that may be encountered in the access of Guangzhou Digital Education City SSO system in secondary vocational schools, especially on how to realize heterogeneous docking for the schools which have its own SSO system, and puts forward a good solution for the actual situation.