Collapses of power transmission towers had usually taken place in previous large earthquake. The collapse
process of a power transmission tower under earthquake excitation is studied in this paper. Using international finite element
software ABAQUS, the three-dimensional finite element model of the power transmission tower is created based on a
practical engineering. Three typical seismic records are selected. The progress collapse processes of the power transmission
tower under different seismic excitations are simulated using the nonlinear time history method. The collapse paths and
failure positions of the power transmission tower are obtained under different seismic excitations. The results can provide
reference for seismic design of power transmission tower which can prevent the collapse of the power transmission tower.