The mushroom residue compost,peat,vermiculite and perlite were used to compose different complex media for cucumber seedling production by adding different dosage of slow release compound fertilizer.The results showed that it could meet the nutrient needs of cucumber seedling without nutrient solution fertigation by adding slow release fertilizer(N-P2O5-K2O=14-14-14)at 1.71～2.14 g·L-1 into complex media of peat,mushroom residues,vermiculite and perlite at a volume ratio of 2∶3∶2∶3(V∶V∶V∶V)and cultivate high quality seedlings.