MTConnect is a technical standard recently proposed to facilitate the organized retrieval of process information mainly from numerically controlled machine tools. In this paper, core components such as agent, client, adapter etc are overviewed. Considering the difference in manufacturing devices openness and capabilities, different application schemes of agent and adapter are designed according to MTConnect protocol. Agent is designed for data acquisition in different situations and different ways to use Adapters are mainly discussed. Finally, the client, a software function in the application is developed by using C#. And the application is applied to a NC machine tool. In terms of data request, collecting, transmission and detection from a working NC machine tool, the proposed architecture in this paper is verified successfully.