Body-in-white size measurement control method and control system

The invention provides a body-in-white size measurement control method and system, and relates to the technical field of vehicle measurement. According to the body-in-white dimension measurement control method, when an online dimension measurement intelligent control system receives a measurement demand instruction of a user, a preset vehicle model is obtained from the demand instruction, and vehicle body datum point positioning information corresponding to the preset vehicle model is obtained from a first mapping relation table according to the preset vehicle model; and then the vehicle body reference point positioning information is matched with a scheduling number to obtain a program order, and a measurement support program is called according to the program order when the body-in-white is measured, so that a measurement work station adjusts a measurement support of the to-be-measured body-in-white corresponding to the scheduling number according to the measurement support program, and the size of the to-b