Backscattering coefficient is an important parameter in ocean optics and determines to a large extent ocean optical properties of coastal case Ⅱ water, whose dominant constituent is suspended material. The remote sensing retrieval of the backscattering coefficient is important for the research of ocean optics and ocean color remote sensing. Based on in situ data acquired in nearshore area of the Bohai Sea in 2005, the empirical retrieval model for backscattering coefficient bb(λ) (λ=442 nm, 488 nm, 532 nm, 589 nm, 676 nm) based on remote sensing reflectance is developed. The model is validated by in situ data with mean relative errors for bb(442) and bb(589) retrievals about 30%, those for bb(488) and bb(676) better than 40% and that for bb(532) ～57%. Model′s sensitivity to the input error is analyzed by introducing ±5% error of remote sensing reflectance artificially. It′s found that for the majority of different cases of input error, the model is stable and reliable with the output error fluctuation less than ±10%. The model is applicable to the turbid coastal water of the Bohai Sea and could be utilized in the spatio-temporal variation analysis of ocean optical properties as well as optically significant constituents retrievals based on inherent optical properties.