The invention provides a method for determining joint distribution parameters of a strip mine slope rock mass. The method comprises the steps that the surface joint distribution parameters of the strip mine slope rock mass are tested; the internal joint distribution parameters of the strip mine slope rock mass are tested; the joint distribution parameters of the strip mine slope rock mass are calculated according to the surface joint distribution parameters of the strip mine slope rock mass and the internal joint distribution parameters of the strip mine slope rock mass. The method integrates a method for three-dimensional non-contact measurement of strip mine slope rock mass surface joints and a method for drilling television measurement of internal joints. For accurately, simple and conveniently determining the joint distribution parameters of the strip mine slope rock mass, vertically and horizontally crossed perforating layout is adopted and combines with ShapeMetriX3D and a borehole television, the surface joint distribution parameters and the internal joint distribution parameters of the strip mine slope rock mass are respectively tested, and the surface joint distribution parameters of the strip mine slope rock mass and the internal joint distribution parameters of the strip mine slope rock mass are fused and complemented by adopting a self-organizing neural network artificial intelligence technology to obtain the real joint distribution parameters of the strip mine slope rock mass.