Ultrafast spectroscopy in the light-harvesting complex II, photosystem II particle complex and photosytem II core complex has been studied using ICCD femtosecond image scanning set and femtosecond time resolved spectrometer. 7 spectral components of chlorophyll a/b molecule have been obtained from the trimeric light-harvesting complex II, and they areChl b653/656658.7、Chl a662.0665.2、Chl a/b670/671671.6、Chl a675.0677.1、Chl a680/681682.9、Chl a685.0689.1 and Chla695.0695.6(Chl aae, a is the absorption spectrum peak, e is the emission spectrum peak). Exciting in the trimeric light-harvesting complex at 440 nm with intensity of 1013 photos/cm2/pulse, fluorescence kinetics from 605 nm to 705 nm, yields 4 ultrafast component lifetimes of 210 fs and 520 fs, 5.2 ps and 36.7 ps, and 2 long component lifetimes of 1.8 ns and 2 ns. The three fastest lifetimes of 210 fs , 520 fs and 5.2 ps directly reflect from trimeric Chl b to Chl a energy transfer processes. The lifetime 36.7 ps shows the energy transfer time from Chl a to nearby monomer Chl a.The longest 2 lifetime reflect the energy transfer processes of Chl a molecules from excited state to ground state through middle Chl a molecules in the trimeric.CP43 and CP47 of PSII core antenna has three Chl a molecules of different condition ,they are CP43-Chla660661、Chla669670、Chla682686,CP47-Chla660661、Chla669670、Chla680681。