The aim of the present study to identify constraints perceived by livestock owners in the Adoption of Improved Animal Husbandry Practices in arid zone of Rajasthan state of India. The study was carried out in Pokaran region of Jaisalmer district of Rajasthan. The quantitative and qualitative data were collected through interview schedule, discussion, observation and available secondary sources. The respondents were asked to assign rank to each of listed constraint according to perceived intensity. On the basis of rank assigned by all of the respondents to each constraint, Rank Based Quotient for individual constraint was calculated. Results of study showed that low education level of family, lack of knowledge about balanced feeding, lack of knowledge about improved breed of animals, lack of knowledge about animal diseases and poor productivity status of animals were considered as major constraints reported by dairy farmers having RBQ values 80.40, 89.54, 80.71, 78.73 and 86.80 respectively. Whereas, less transportation and communication facility, high cost of feed/fodder, inadequate knowledge to detect heat signs in dairy animals, not knowing about services and facilities provided by the government and lack of dairy cooperative society in village were considered as minor constraints having RBQ values 60.12, 70.00, 52.10, 61.76 and 60.43 respectively.