Using ’Jundan 8’ as experimental materials,effects of different applying methods of biogas slurry on maize growth were studied in Yongchun town,Changchun city,Jilin Province. Effects of different application methods of biogas slurry on agronomic characters and yield of maize were determined. The results showed that biogas slurry used in maize cultivation enhanced economic traits and yield of maize. The method of 30% base fertilizer and 70% topdresssing was the best,maize showed strong growth potential,a sturdy stem,bigger ear,and high yield.