Abstract：Objective Aiming at the problem that the active and passive behaviors of different structurally coupled muscles cannot consider the mechanical properties of the continuum of muscle tissue, a method of passive and active coupling in the same constitutive equation is proposed to construct a superelastic active and passive constitutive model of skeletal muscle continuum.Methods In order to calibrate the parameters of the passive constitutive model, the uniaxial tensile experiment method and conditions are given, and through theoretical derivation, the specific method of using the experimental data to solve the passive model parameters is introduced. In order to verify the effectiveness of the active model, simulation analysis of the model is carried out with an example. Results The simulation results show that the experimental simulation results are in good agreement with the experimental output stress-stretch ratio curve. Under the same strain, the maximum error of passive stress and total stress is only 0.02 MPa and 0.04 MPa.Conclusions The continuum hyperelastic constitutive model can better simulate the active and passive behavior of skeletal muscle, which is beneficial to the next step of modeling and simulation of human muscles.