Measuring the force feedback from the object, describing it in virtual space, and displaying it in real time are necessary for the purpose of displaying the three-dimensional (3D) force feedback from a real object. We have constructed a system realizing these procedures. In the system, 3D force feedback from an object is described by interpolating measured data using Radial Basis Function (RBF). Real-time force display is carried out by direct access of a set of grid points sampled from the interpolated force field.