To enhance the automation of national seismic cataloging and improve the accuracy of earthquake parameter determination,we have optimized the data processing workflow of the national network catalog and developed software for importing phase data from national stations. This software integrates the SeisComP platform with existing national cataloging operations. In this paper,we present the design principles and key functionalities of the phase data import software. Using the M_S6.2 Jishishan earthquake in Gansu Province on December 18,2023,as a case study,we illustrate the integration of national station phase data with offline event waveforms. By leveraging the SeisComP system's capabilities, such as automated earthquake detection,earthquake parameter determination,visual human-machine interaction,and data quality monitoring,we significantly enhance the scientific rigor and reliability of national seismic cataloging.