Abstract: As an endothermic hydrocarbon fuel, pentacyclo6.3.1.02,7.03,5.09,11dodecane has been synthesized from dicyclopentadiene catalyzed by Zn(Cu). Effects of catalyst ingredients, catalyst amount, temperature on yield of titled compound were investigated. The optimal conditions were: 15℃, n(DCPD)∶n(Zn(Cu))∶n(CH2I2)=1∶4∶8. Under the above conditions the conversion of dicyclopentadiene was 99.7% and the yield of pentacyclodocane reached 91.5%.