The invention relates to a preparing method for graphene enhanced ODS copper, and belongs to the technical field of copper base composite material preparing. Copper salt serves as a copper source, aluminum nitrate serves as an aluminum source, sodium hydroxide or ammonium hydroxide serves as a precipitator, copper hydroxide and aluminum hydroxide are generated through copper ions and aluminum ionsand are subjected to coprecipitation with graphene scattered in the solution, a graphene enhanced ODS copper blank is obtained through drying, reducing, forming and sintering, and the graphene enhanced ODS copper is fully dense through heat extrusion, hot forging, hot rolling and other heat machining means. According to the preparing method, the uniform dispersibility of graphene in a copper basebody is improved, the interface bonding state between the graphene and the copper base body is improved, the dual strengthening effect is achieved through guiding of graphene and dispersely-distributed nanometer aluminum oxide particles into the copper base body, the strength of the base body is improved, and meanwhile the conduction performance of the base body cannot be reduced.