The invention discloses a composite vibrating diaphragm and a manufacturing method of the composite vibrating diaphragm. The composite vibrating diaphragm sequentially comprises a first polymer material layer, a graphene layer, a glue layer and a second polymer material layer from top to bottom, wherein the first polymer material layer directly adheres to the graphene layer, and the second polymer material layer adheres to the graphene layer through the glue layer. The manufacturing method of the composite vibrating diaphragm is simple and the manufactured composite vibrating diaphragm has the advantages of being high in strength and excellent in performance.