Abstract: The data access from the International Data Center under Comprehensive Nuclear Test Ban Treaty Organization via AutoDRM is described and the method of requesting and acquiring the IDC’s segment data of waveform in the NDC’s processing is introduced in the paper. The data request broker mail program to obtain data from International Data Center is designed, which can parse email and store the logical relationship between data requester and the requested data. Under the condition that total daily data requests are limited, the share of data is achieved and the needs of domestic authorized users are satisfied through the program. The program is proven to be stable and reliable and meets the design goals.