Rene95 powder and different substrates were selected to be conducted by the laser metal forming technique. It is found that the cladding layers with either columnar or equiaxed grains can be obtained under different solidification conditions. As the crystallography orientation of the substrate influences that of the cladding layers strongly. Multi-grain cladding layers can be obtained on the multi-grain substrate, while directional solidification columnar or even single crystal cladding layer can be achieved on the directional solidification or single crystal substrate.The mechanism of microstructure formation in the cladding layer was furtherly investigated according to the columnar/equiaxed transition profile. In addition,an ear-like single crystal component was manufactured using the DD3 single crystal as substrate. The yield strength at room temperature was examined on the heat-treated slice sample. The results indicate that the yield strength is about 97.9% of that of the powder metallurgical tensile sample while the plasticity overpasses 80% of the powder metallurgical tensile sample. Rene95 powder and different substrates were selected to be conducted by the laser metal forming technique. It is found that the cladding layers with either columnar or equiaxed grains can be obtained under different solidification conditions. As the crystallography orientation of the substrate influences that of the cladding layers strongly. Multi-grain cladding layers can be obtained on the multi-grain substrate, while the directional solidification columnar or even single crystal cladding layer can be achieved on the directional solidification or single crystal substrate. mechanism of microstructure formation in the cladding layer was Furtherly, according to the columnar / equiaxed transition profile. In addition, an ear-like single crystal component was manufactured using the DD3 single crystal as substrate. The yield strength at room temperature was examined on the heat-treated slice sample. that the yield strength is about 97.9% of that of the powder metallurgical tensile sample while the plasticity overpasses 80% of the powder metallurgical tensile sample.