A widely acknowledged fact is that viscoelastic behavior exhibited in cortical bone that influences the biomechanical reaction when an external load applied to an implant. Moreover, the successful operation of an implement can be easily affected by long term load, i. e., relaxation, creep, and remodelling. In the current study, the design and manufacture of creep equipment is complied with ASTM D2990, and an apparatus is specially designed for creep tests and test samples were taken from femur bovine cortical bones of animals with 24 month age. The current work states the viscoelastic behavior of bone which is simulated theoretically, using Burgers rheological model. The behavior of bone is demonstrated by the model and its parameters when it is subjected to longitudinal loading. Additionally, the simulations with the model excellent show agreement among all experimental and theoretical results reaching up to (99.11% - 100%). The results and their diagrams for each stress were recorded and drawn separately. The influence of different temperature has been studied on the behavior of creep for bovine femur samples, the samples were examined for 1800 seconds under the influence of three degrees of stress (25, 50, and 65) MPa respectively. Each stress was examined with different temperatures of (29, 35, 40, and 50°C), due to the fact that such degrees are the average climate temperatures. The results shows that the temperature effects on creep behavior of bovine cortical bones, with the increase of temperature the initial strain was increase(from 0.032% to 0.11%), the duration of the first stage of creep curve is decrease and the creep strain rate was increased (from 1.88 με/sec to 8.05 με/sec).