Abstract: Focusing on the problem of how to select the big data service platform, which was disturbing many enterprise users at present, this paper analyzed the current main technical structures of the big data service platform, and studied on the product selection method of the big data service platform from the perspectives of both testing metrics and testing benchmark according to the characteristics of railway industry. The work is expected to be instructive to the gradual advancing of intelligent railways and the construction of railway big data service platform.