Abstract: Nappe structure is well developed in the southwest Fujian province.It can be classified into 5 types,including: decoupling(slippling) structure generated from the Upper Paleozoic to the Xikou Formation of the Lower Triassic of the Mesozoic;decoupling(slipping) structure generated during the Indosinian epoch and developed to folding and decoupling structure under the influence of folding effect during the Yanshan epoch;intermediate depth thrust nappe structure generated in the Indosinian and early Yanshan epochs;shallow thrust nappe structure generated in the Yanshan epoch,shallow fold thrust nappe structure distributed in the autochthonous rock series of shallow thrust nappe structure of the early Yanshan epoch,among which the intermediate depth thrust nappe structure of the early Yanshan epoch is the biggest.