The objective of this research was to determine the chemical composition and feed intake for captive serows (Capricornis milneedwardsii) in Chiang Mai Night Safari. Nine serows (5 years old with average weight of 60.33±5 kg) with 90-day trial period were used in this study. Experimental dietary feeds were pisang awak banana, sweet corn, pangola hay, chinese water convolvulus, and maize plants. Chemical compositions were analysed by proximate analysis and Van Soest methods. Daily feed intakes were recorded to determine the dry matter intake. Completely randomized design (CRD) was used for the experimental design. The results showed that the sweet corn has significantly higher valuable organic matter than other feeds (P<0.001) while pangola hay shows significantly lower amounts of crude protein and lipids than other feeds (P<0.001). In addition, considering the amount of nutrient intake, serows show significantly higher feed intakes of dry matter, organic matter, and crude fiber of maize plants than other feeds (P<0.001). Therefore, the maize plants can be used as a source of energy for serows and utilize it for their livelihood growth. The maize plants also have lower cost compared to other types of feed. Therefore, the maize plants are suitable for use as a feed source to raise serows in captives for the conservation of serows in Thailand.