The tower-line finite element model of the transmission test line is set up by means of ABAQUS software. Galloping of the six bundle conductors with D-shaped ice model in the line is numerically simulated, and the dynamic response of displacements, galloping orbit, galloping modes and frequencies are obtained. The numerical simulation results are consistent with those measured on the transmission test line, which verifies the numerical model and simulation method. The established finite element model and the numerical method can be employed to investigate galloping behavior and assessment of anti-galloping techniques.