Abstract: Using GNSS technology, the establishment of a demonstration station for remote time and frequency transmission and traceability application in Henan is introduced. By adopting GNSS co-viewing method, building a satellite navigation time and frequency application platform which can be traced to national atomic time-scale primary standard in real-time, establishing Henan provincial time standard, realizing remote transmission and traceability of time and frequency, the absolute value of the deviation of the moment (1-day average) is not more than 10 ns, and the standard uncertainty of traceability (deviation) is not more than 10 ns, providing high precision time and frequency standard service for the society.