In this paper we have used focal sampling and scanning sampling method primarily to study David's deer time budget and habitat selection behavior.The result shown that David's deer herd spent more time on resting and less time on standing and moving

feeding and drinking;the herd preferred hard soil and feeding zone in terms of habitat selection;the affiliate behavior existed among the master and adult female.Artificial selection dereased the frequency of fighting behavior and increased that of horning and territory behavior

which was closely related to sexual behavior.