揭示了５０年代以来热带三大洋海表温度（ＳＳＴ）长期变化的两个基本构成（线性增温及ＥｌＮｉｎｏ－ ＬａＮｉｎａ振荡），并比较了它们在三大洋中的典型程度。在此基础上重点分析了热带太平洋西、中、东部ＳＳＴ长期变化的差异，指出热带西太平洋ＳＳＴ长期变化中ＥｌＮｉｎｏ－ Ｌａ Ｎｉｎａ振荡相对较弱，线性增温趋势被年代际强弱振荡代替 Reveals two basic components (linear warming and ElNino-LaNina oscillations) of long-term SST changes in the tropical three oceans since the 1950s and compares their typical extent in the three oceans. On this basis, the differences of long-term SST changes in the western, central and eastern parts of the tropical Pacific are analyzed emphatically. It is pointed out that El Nino-La Nina oscillations in the long-term SST variations of the tropical western Pacific are relatively weak and the linear warming trend is replaced by decadal oscillation