The invention provides an earthquake velocity analysis method along a geologic structure trend. The earthquake velocity analysis method along the geologic structure trend includes the steps of determining the geologic structure trend in a velocity analysis area, enabling velocity analysis surface element distribution to fit in with the geologic structure trend; centering on a single velocity analysis point for the single velocity analysis point, increasing the trace gathering number along the geologic structure trend, selecting an optimum elliptical face element combination short-shaft length; and increasing the trace gathering number along the geologic structure trend, and selecting the optimum elliptical face element combination short-shaft length. The earthquake velocity analysis method solves the problem in the prior art that the influence of the underground geologic structure on the velocity analysis is ignored, and has the advantages of strengthening focus capacity of a velocity spectrum of a place with a complex geologic structure, being capable of improving accuracy of velocity pickup, and thus improving stacking effect and migration imaging effect of the complex geologic structure.