To efficiently manufacture a product according to a desired condition of a manufacturing site.SOLUTION: A manufacturing management device 10 comprises a storage medium 12 and a processor 11. The storage medium 12 stores association of a plurality of products whose constituent components are different from each other with a manufacturing number of each of the plurality of products. Manufacturing work of the plurality of products is performed on a dolly in a manufacturing line where the dolly moves at a constant speed. The processor 11 calculates a sufficiency rate, which is a rate of the number already allocated to the manufacturing line corresponding to the number expected to have already been allocated to the manufacturing line using the association stored in the storage medium for each of the plurality of products, and determines manufacturing order of each of the plurality of products in the manufacturing line based on the sufficiency rate.SELECTED DRAWING: Figure 24