The invention provides a demand-oriented geometric feature-driving turbine disc structure interactive design method. The interactive design method comprises following steps of 1, inputting coordinate values of control points of a turbine disc two-dimensional geometrical configuration; 2, establishing a turbine disc axisymmetric finite element model for the turbine disc two-dimensional geometrical configuration; 3, carrying out structural analysis on the established turbine disc axisymmetric finite element model; and 4, in dependence on the design demand, changing the turbine disc two-dimensional geometrical configuration, and automatically displaying the coordinate values of the control points of the turbine disc two-dimensional geometrical configuration, establishing the turbine disc axisymmetric finite element model and carrying out finite element calculation. Through the above steps, the control points of the turbine disc two-dimensional geometrical configuration can be dragged by a mouse, turbine disc weight calculation, stress-strain analysis, fatigue life prediction, meridian plane burst speed calculation and radial burst speed calculation are automatically carried out, the turbine disc structure design efficiency is improved, and the case that during the previous design process, once the scheme is changed, modeling needs to be carried out again manually, and therefore time and manpower are wasted is avoided.