This study is to evaluate growth perfonnance and feed conversion efficiency of two Tau Vang chicken lines selected at Can Tho University. The results indicated that in the period of 1-5 weeks old, the CTU-LA01 line had average daily gain (ADG) higher and feed conversion ratio (FCR) lower than the CTU-BT01 line. At the fifth week of age, the Tau Vang chicken reached a weight of 356.11 g/head, ADG of 12.14 g/day, feedintake of 37.04 g/ day and FCR of 3.16 with a diet of 20 percent crude protein and 2,900 kcal/kg ME. Howerver, in the growing period (6-13 weeks old), the CTU-BT01 grew up better than the CTU-LA01. This leaded to (i) the approximately weight between two lines (1677-1678 g/head), (ii) weight of male 1839 g/head and of female 1516 g/head at the thirteenth week of age. The FCR in this period was 3.8. Additionally, gender also affected ADG of the Tau Vang chicken and of course the male was always heavier than the female.