The invention discloses an image measuring system and method of radiator section difference, which comprises the following parts: customer end computer, appliance server, X direction servo axle, Y direction servo axle, laser shift sensor, laser shift controller, information acquisition card and working table, wherein the appliance server contains several software function modes to control the measuring operation of section difference; the software function mode contains information storage mode, information calling mode, parameter setting mode, section difference quantity measuring mode, self-alarming mode and measuring result display mode. |