The paper systematically reports the latest research results of the fluvial deposits of the Jingjiang river reach of the Yangtze River．There are numerous sedimentary sand hodies of dif- ferent types in this reach，including all the microtopographic units of fluvial deposits，for exam- ple,channel bars，eyots，high and low meander point bars，distributary mouth cuspate bars， crevasse splays and bayous．The detrital composition，chemical composition，trace elements，clay minerals and Qrganic carbon in the deposits and rock facies types and assemblages are discussed systematically．On that basis combined with flume experiments，the process of deposition，regu— larity of accretion and architectural elements of five dominant types of sandbody are analyzed． According to the sedimentary feature of different units of the sandbody，microfacies zones are distinguished and sedimentary models are advanced．