In order to improve the smoothness of the cladding layer of graphite/copper self-lubricating material, the effect of laser cladding lap ratio on the smoothness of the cladding layer and the improvement effect of secondary remelting treatment on the cladding layer were investigated. The results show that the laser lap ratio of 75% is not suitable for the actual processing parameters. When the lap ratio of laser cladding is 50% or 25%, continuous dense cladding layer can be obtained. When the lap ratio of 50% is suitable for a single cladding with large thickness, continuous dense cladding layer of a certain thickness can be produced at one time. The lap ratio of 25% is suitable for multiple laser cladding to produce a continuous dense cladding layer with smaller thickness but better relative flatness, which is convenient to bond the subsequent cladding material and avoid the influence of the thickness difference of cladding material in different parts on the cladding layer. The secondary remelting treatment can effectively reduce the height drop of the cladding layer.