In this paper, we propose a SNS-based collaborative learning service in ubiquitous environment. The point is it supports the learner to get help from the other SNS members, at the end makes them help each other. The service allowed the users use the service to search the person, who can solve the problem, and an appropriate request chain of friends (CF) will be advanced, upon their request, and then the learner contacts the helper for help tracing the CF. This paper describes the design and the implementation of the service.