The brooding behavior and nestling growth of Relict Gull (Larus relictus) were observed using e-Science information technology and marked method in Hongjiannao(N 38°13'-39°27', E 109°42'-110°54'), Shannxi Province from May to July 2012. Nestlings were feeding by parent. Three feeding patterns were recorded in pre-brooding periods. Parent fed nestling in average 0.706±0.036 times/h in daytime and 0.469±0.024 times/h in night, respectively, the feeding frequency by male and female was no difference (F=32.54, P>0.05). In the post-brooding period, parent showed two feeding modes, the feed frequency was average 0.416±0.021 times/h in daytime and 0.331±0.018 times/h in night, respectively. Feeding frequency was related to age of nestlings (r=0.074, P<0.05). The frequency of warming nestlings tended to decrease as the chicks grew older. While, parent spent more time on warming and safeguarding chicks was increase largely in the day with bed weather. No any brooding behavior was recorded after the chicks reached to 20 day old. The growth curves of body weight and body length were suitable to fit to Gompertz curves.