The destination of the regional station data transmission around the nation is transformed from the municipal center to the provincial center. The adjustment of regional station data transmission brings some challenges to the regional station operation and maintenance support of provincial level, municipal level and county level. In order to solve the difficulties in the unified management, monitoring and fault diagnosis, a provincial monitoring system for data direct transmission between regional stations is designed and implemented. CIMISS and the provincial regional center are the foundation of the provincial operation and maintenance support system based on the Django framework. The system can monitor and display the flow link of the CIMISS CTS, provincial regional center, regional station data sources and regional station batteries. The system can also display the regional station data transmission history and diagnostic faults and has come into service, which can improve the capability of operation and maintenance support for regional station data transmission.