The data transmission and SMS checkin system of nextgeneration weather radar is introduced, which solved some problems existed in the current nextgeneration weather radar observation. The data transmission subsystem, which integrates the transmission and monitoring of 3 kinds of radar data and solves the problems in the operation, is developed. The timeliness, stability, reliability, and security of the data transmission system are further improved. The research on automatic SMS checkin for the nextgeneration weather radar also is also conducted according to the soft fault exclusion experiences. The adaptive subsystem is designed for the realtime transmission of the next generation weather radar fault monitoring alarm, which receives SMS commands in accordance with the predefined procedures, automatically excludes the part of the fault soft tasks, in order to resume early the normal operation of the newgeneration weather radar, and improves the timeliness of troubleshooting. The actual application of the system in the Haikou weather radar station shows that it performs well and can meet the current needs of the nextgeneration weather radar operation and observation.