The invention discloses a preparation method of a graphite skeleton containing graphene. The graphite skeleton is prepared from natural flake graphite powder, phenolic resin powder and graphene through proportional mixing with an SLS (selective laser sintering) method, wherein the phenolic resin powder accounts for 20%-50% of the graphite powder by mass, graphene accounts for 1%-3% of a whole mixture by mass, and the size of the graphite skeleton is designed and adjusted according to actual demands; the graphite skeleton prepared with the SLS method is subjected to secondary curing and dipping reinforcement, and the graphite skeleton containing graphene is obtained finally. The graphite skeleton containing graphene prepared with the method has higher strength, good lubricating property and conductive network structure, can be applied to preparation of a graphite/metal based self-lubricating composite material and a graphite/polymer conductive composite material and guarantees uniform falling of graphite of the graphite/metal based self-lubricating composite material in a use process, so that the graphite/polymer conductive composite material is provided with sufficient conductive paths.