Woven prepregs were increasingly employed in the thermos-compression molding of helicopter rotor blades，and accurate characterization of their mechanical behavior was critical for predicting and controlling forming quality.This study focuses on investigating the influence of different temperatures and loading rates on the in-plane fiber-direction tensile，in-plane shear，and out-of-plane bending mechanical behaviors of CF3052/3238A carbon fiber/epoxy woven prepreg during thermos-compression.The results show that the tensile modulus of CF3052/3238A varies little with temperature or loading rate.By contrast，shear deformation becomes less sensitive to loading rate as temperature increases，accompanied by a pronounced reduction in shear modulus；moreover，the shear modulus increases with loading rate.For a fixed loading rate，the prepreg''s bending stiffness decreases as temperature rises，whereas at a fixed temperature the bending stiffness increases with loading rate.Building on these observations，based on its in-plane uniaxial tensile，shear deformation，and out-of-plane bending deformation characteristics，a mixed shell-membrane elements is employed to fully decouple the prepreg''s in-plane tensile deformation from its out-of-plane bending deformation.Accounting for the material’s true bending stiffness，a non-orthogonal constitutive model with accurately tracked fiber directions was used to describe the behavior of the woven prepreg.Simulations of in-plane shear deformation and the forming of a hemispherical part confirm the effectiveness and fidelity of the proposed forming model.