This study aims to determine the effect of giving a combination of the ark with ammoniated citronella grass waste on the levels of protein, fat, lactose and density of lactated Etawah crossbreed goat milk. The design used in this study was a randomized block design (RBD) consisting of 5 treatments and 3 groups. The treatment consisted of P1 (0% ark: 8% ammoniated citronella grass waste), P2 (2% ark: 6% ammoniated citronella grass waste), P3 4% ark: 4% ammoniated citronella grass waste), P4 (6% ark: 2% citronella ammonia grass waste) and P5 (8% ark: 0% ammoniated citronella grass waste). The data obtained were analysed statistically using Microsoft Excel software. Based on the results of the research, giving the combination of the ark with ammoniated citronella grass waste shows no significant effect (P> 0.05) on the quality of milk which includes density, lactose level, protein level and fat level in Etawah crossbreed goat (PE) milk. However, the quality test results showed an increasing trend when compared with the quality of PE goat’s milk without treatment The results of the data for each of the PE goat’s milk quality before given the feed treatment were 1.027; 3.34%; 3.42% and 6.40% for the density, lactose level, protein level and fat level. Meanwhile the results of the data for each of the PE goat milk quality after given the feed treatment got the best results, namely 1.030; 3.66%; 3.78% and 6.55% for the density, lactose level, protein level and fat level.