To provide a pressure distribution analytical system capable of analyzing quantitatively force applied onto a body, and a ball catching tool design system using the same.

This pressure distribution analytical system 1 for analyzing a distribution of pressure applied from an attached tool attached to at least one portion of the body to the body is provided with a pressure data input part 2 for inputting a time-serial data of the pressure detected by a pressure sensor 8 arranged between the attached tool and the body, when the body executes a series of actions, a polygon data input part 3 for inputting at least a partial shape data of the body as a three-dimensional polygon data, a pressure distribution calculating part 5 for calculating the pressure distribution on a surface of the body, based at least on the time-serial data of the pressure and the polygon data, and an output part 7 for displaying the pressure distribution calculated by the pressure distribution calculating part.