Titanium Matrix Composites have received intensive attentions in the past decade because of their high specific stiffness and strength and resistance to high temperature. Increasing temperature has profound effects on load partitioning at microstructural level due to phase-to-phase and grain-to-grain interactions related to various physical mechanisms. For the development of accurate life prediction methodologies a thorough understanding of the mechanical damage mechanisms and environmental effects must be established. The current experiment is proposed to characterize the micromechanical behavior of a Ti/SiC-fiber composite under cyclic loading at room and elevated temperature, respectively. The objectives are to provide fundamental data for a better understanding of deformation and damage mechanisms at elevated temperatures and for developing a new FEM-SC micromechanical model.