From March to May in 2006, with instantaneous scan sampling method, the individual behavior of Trachypithecus francoisi francoisi in the Jinfo Mountain Nature Reserve was investigated by focal observation and continuous recording. According to the results studied, 9 distinguished daily behavior patterns of francois’langur were classified. They were defined as feeding, rest, moving, drinking, sun-bathing, lapping rock, social behaviors, cave leaving and cave entering. In the daily activity rhythm of the wild Francois’Langur one long rest peak was found at about 10:30—14:00. There were two peak-times for feeding. One was about 7:30—9:30 and the other about 17:00—18:30. For moving three peaks were found at 6:30—8:00, 14:00—15:30 and 18:00—19:30. For other behavior, only one obvious peak was recorded at 12:00—14:00. In the daily time distribution, followed by feeding (21.56±8.13)% the most time was spent on rest (57.94±12.07)%. The time spent on moving and other behavior accounted for(13.12±5.12)% and (7.38±3.11)%, respectively.