The invention belongs to the technical field of additive manufacturing, and particularly discloses a laser additive manufacturing method. The laser additive manufacturing method includes the followingsteps that S1, a metal ceramic layer with the thickness being s is prepared by heating metal ceramic mixed materials, and the prepared metal ceramic layer is provided with holes because of existenceof ceramic; S2, metal materials are heated to melt, and the holes are filled with the melted metal materials under the action of gravity and capillary force to obtain a dense solid layer; and S3, thesteps S1 and S2 are repeated to complete preparation of each dense solid layer, and a high density metal ceramic composite part is obtained. According to the laser additive manufacturing method, the problem of forming a large number of shrinkage auxiliary holes due to poor fluidity during metal ceramic additive manufacturing and forming can be solved, and the advantages of simple and convenient preparation process, high operability and the like are achieved.