This study aimed to determine the proximate and phytochemical composition ofPhyllanthusamarus. The results of proximate composition of Phyllanthusamarus showed that the plant leaves contains fat 8.40 %, moisture 6.48 %, ash 10.58 %, fibre 2.40 %, protein 23.97 % and carbohydrate 48.02 %. The results of phytochemical composition of Phyllanthusamarus revealed Kaempferol 2.3726 ug/ml, Steroid 15.7626 ug/ml, Proanthocyandin 8.1619 ug/ml, Catechin 23.3542 ug/ml, Anthocyanin 3.8979 ug/ml, Narigenin 13.5721 ug/ml, Dihydrocytisine 8.0184 ug/ml, Cyanogenic glycoside 8.7028 ug/ml, Aphyllidine 0.2959 ug/ml, Ammodendrine 6.2495 ug/ml, Tannin 9.8090 ug/ml, Flavonoes 8.7210 ug/ml, Cardiac glycoside 14.2203 ug/ml, Flavone 3.60099 ug/ml, Ribalinidine 10.1874 ug/ml, Spartein 4.1965 ug/ml, Phytate 8.1192 ug/ml, Oxalate 9.0074 ug/ml, Epihedrine 1.9501 ug/ml, Sapogenine 18.0269 ug/ml. It may be concluded that the leaves of Phyllanthusamarus contain several phytochemicals that could be of good therapeutic purposes.