The second volume of the textbook is devoted to a systematic presentation of the universal laws of mechanics and electrodynamics of a continuous medium. Kinematics of continuous media, theory of short-distance derivatives, laws of preservation of mechanics and equations of electrodynamics of continuous media, principles of construction of defining relations for various types of continuous media at arbitrary finite deformations, theory of function jumps on surfaces of strong breaks, including in electromagnetic field, dimension theory are considered.