WT5BZ]In the context of NCEP/NCAR reanalysis daily data in 1998, this paper investigates the features of LFO (low frequency oscillation) structure over the Tibetan Plateau in the summer of 1998.Results show that teleconnection horizontal structures of different low frequencies(LF) have similar wave trains though they exist discrepancy features.LFO structure of principal part of the Plateau is of equivalent barotropic structure.LFP(low frequency precipitation) is generally located at LF cyclonic circulation or LF flow convergence belt.Activities of LFP of south of the Yangtze River and south of the Plateau can be foreshadowed with LFP of the Plateau.LFP strengthens or weakens simultaneously in the Tibetan Plateau and at the low/mid Yangtze Reaches as well as in northeast China.