In the paper, a study on the buckling analysis of the naval bridge plate specimens made of composite materials instead of steel for the structure is treated. The advantages of using composite materials for the structure of the bridge is made so on the strength and stiffness and for the other reasons.A study on, made of composite materials is presented. Certain bridge plate specimens, of various thicknesses, so in the case of perfect manufacturing and in the case of existing imperfections were analysed. In this paper, only the case of perfect manufacturing specimen is presented.