Plastic material is one of substance material that use as alternate to substitute metal matetial because it has excellent character as: cheap price, corrosion proof and light. And to overcome the lack of and increase the quality so we do surface treatment with nickel electroless plating methode. In this research the material that use is acrylonitrile Butadiene styrene (ABS) plastic with electroless plating process with metal nickel coating material. Variable that use in this research is solution temperatute etching withtemperature variation 30oC, 40oC, 50oC, 60oC, 70oC. Where this. Reseach intend to know. The influence temperature variation etching towards physical characteristic and mechanic to ABS plastic by doing examination of the roughness, hardness, napless and micro structure that gain from theelectroless plating phase towards specimen. On the process electroless plating nickel with variation etching temperature we get available value of the hardness and thickness tend to increase. While the value of the roughness and napless decrease. Based on this research obtained best result in 70oC temperature with roughness value as 0,327 m, hardness as 85,40 shore, napless as 0,22 mm2/Kg.10-4, and thickness coat as 2,59 m.