The invention relates to a heat-conducting electronic material composition which is obtained by mixing N,N'-carbonyldimidazole, tetra-functional epoxy resin, tri-n-butylamine, indoline-2,3-diketone, 2,6-di(4-aminophenoxy) cyanobenzene, a filler, cycloaliphatic epoxide resin, sodium triacetate and acraldehyde. Raw materials in a preparation method disclosed by the invention are wide in source, and the preparation process is simple and controllable, only needs normal operation and is easy to realize industrialization, therefore, the prepared heat-conducting electronic material composition has good heat conductivity and mechanical properties, and development applications of the heat-conducting electronic material composition can be met.