The analysis and comparison are carried out between GTS1 radiosonde an d RS92 radiosonde from both static performance indices and dynamic characteristi cs, and the results show that the time lag effect exists in the temperature meas urement of GTS1 radiosonde, and the RS92 radiosonde gets obviously better humidity measu rement eff ect and lower pressure measurement above 200hPa than the GTS1 radiosonde. Meanwh ile, the RS92 radi osonde owns a higher wind measurement precision and there exsit systematic erro rs a bout 1m/s when the GTS1 radiosonde is located below 850hPa and above 15 0hPa. On the whole, RS92 radiosonde owns better performance.