The invention discloses an intelligent final assembly production line for a metering instrument. The intelligent final assembly production line comprises a line body and further comprises an automaticbase meter feeding device, a ventilation tidying device, a master control board fixing device, a nameplate installing device, a nameplate fixing device, a final assembly information input device, a face cover installing device, a face cover fixing device, an automatic testing device, a plastic package installing device, a meter number pasting device and a qualification certificate pasting device,all of which are sequentially arranged in the conveying direction of the line body. The intelligent final assembly production line solves the problems that in the existing metering base meter (particularly a gas metering base meter) final assembly and testing process, the manual production efficiency is low, the assembling precision and the testing accuracy are hard to guarantee, and equipment compatibility is poor. The intelligent final assembly production line can meet the flexible production requirements of multiple kinds and multiple brands of products, assembling and testing informationis fed back in time, unified control is conducted, intelligent gas metering base meter final assembly and testing are achieved, the manual operation is greatly reduced, the production cost is reduced,and the production efficiency is improved.