The efficiencies and influential factors of the treatment of leachate with high concentration and ammonia -nitrogen are studied by interior electrolytic and aerobic processes.Test results show that when interior-electrolytic, anaerobic and aerobic processes are used in the treatment of leachate with high concentration and ammonia -nitrogen(CODCr 10 000 ～ 90 000 mg L and ammonia -nitrogen >600 mg L), the COD removal rate is up to 99 %, and the ammonia -nitrogen removal rate is up to 90 %.