The mechanical properties parameters of anterior cruciate ligaments,posterior cruciate ligaments,medial collateral ligaments,lateral collateral ligaments and tendons of Chinese knee joints were tested and analyzed based on the hyperelastic constitutive model (Neo-Hookean model) in order to provide reference data for the research of knee joint biomechanics.Through the anatomy of 4 Chinese knee joints,the main ligament specimens of the human knee joints were obtained.Then,uniaxial tensile tests were carried out on the hyperelastic material of the obtained ligament specimens,and the experimental data were processed by using the Neo-Hookean model,which is a strain energy density function constitutive model for hyperelastic materials.The mechanical properties parameters of the human knee joint ligaments based on the hyperelastic constitutive model were calculated.The mechanical properties parameters of Chinese knee joints were successively obtained.The parameters can be used to study the biomechanical properties of knee joints and provide data reference for the properties database of Chinese knee ligaments.