Abstract: The present paper dealt with the effect of anaerobic digestive matters on the growth of citrullus lanatus.The result showed that soaking seed in biogas liquid could increase the germination percentage,promote the physiological metabolism and improve the seedlings quality.It also indicated that the different kind of bioeas residue had the different effect,of which the chicken biogas residue achieved the best one.The different quantity of chicken biogas residue had the different effect on the Growth of C.lanatus.in which the best proportion was 1:5.