In order to study the comprehensive response of 10 kV overhead insulated cable line under lightning impulse, considering the combined effect of force process and thermal process, the vibration response and thermal effect model of lightning overhead insulated cable are established, and the lightning impulse transient simulation analysis under different erection methods, lightning conditions and line damping conditions is carried out. TL lightning return stroke model and Agrawal field-line coupling theory are used to calculate the induced overvoltage of overhead insulated cable line under lightning impulse. The magnetic field distribution of three-phase wire is defined. Based on Biot-Savart law, the calculation formula of electrodynamic load between two overhead insulated cables is derived. Then, the two-degree-of-freedom vibration equation is established based on the lumped mass method. Based on Fourier 's law, the thermal effect model of overhead insulated cable during lightning impulse process and the thermal effect model of overhead insulated cable under power frequency arc burning are established, and solved by Galerkin method to analyze the thermal process and force process of lightning impulse in a short time.