Quick-point grinding is more advanced and more efficiency as a method of high and super-high speed grinding. Its main grinding properties are low grinding forces and temperature. Its basic characteristic is the axis of wheel and workpiece are not parallel and not contained by the same plane. That makes the geometrical property of the quick-point grinding different from conventional cylindrical grinding. This paper emphasizes particularly on the abrasive geometry analysis on the quick-point grinding. After founding a model, this paper has educed equivalent wheel diameter, maximum contact length, undeformed chip thickness and so on. In this paper the quick-point-grinding angle is made use of to find a model of grinding force and deduce an expressions.