The invention provides a copper-based pantograph slide plate material and a preparation method thereof and belongs to the technical field of preparation of copper graphene self-lubricating composite materials. Graphene supported copper powder, tin powder and copper powder are mixed according to a certain proportion, and subjected to hot pressed sintering after being evenly mixed, and accordingly the pantograph slide plate material is obtained. According to the copper-based pantograph slide plate material, the graphene is introduced in the form of the graphene supported copper particles, so that the purpose that graphene strengthening phases are evenly scattered in a metallic matrix and form strong interface chemical bonding is achieved. The graphene/copper-based pantograph slide plate prepared based on the method is uniform in texture, has a good heat-conducting property and high intensity and abrasion resistance, and is suitable for being produced in batches.