Based on 12 flight dataset from the 8th WMO international radiosonde intercomparison hold at Yangjiang of Guangdong province,the systematic evaluation of 3 types of bead resistance temperature sensor for China-made radiosondes,which belong to CHANGFENG,HUAYUN and DAQIAO company respectively,is carried out by choosing Germany GRAW radioseonde as reference through the same balloon releasing model.The initial evaluation results show as following:1)The 3 temperature observation profiles of domestic radiosondes have good consistence with that of Germany GRAW radiosonde,with better performance at nighttime than at daytime;2)CHANGFENG temperature sensor has better stability,whereas HUAYUN temperature sensor and DAQIAO temperature sensor both decrease in performance with height increase,particularly above 30 km;3)CHANGFENG temperature sensor has the best performance,whose relative systematic error is about 0.2℃,whereas the relative systematic errors of HUAYUN temperature sensor and DAQIAO temperature sensor can reach 1℃.So bead temperature sensor may be a good choice for future upper-air temperature detection,but the coating material and radiation correction algorithm for HUAYUN temperature sensor and DAQIAO temperature sensor need to be further improved.