Constructivism is the special form of mathematics which rests on algorithmic procedures but not on abstract sets and formulas. The physical constructivism in its final form represents still hypothetic program complex, which embraces all natural sciences. This book explains the main thesis of physical constructivism and its key role in the future of theoretical physics. This book also examines the constructive treatment of the quantum computer as the model object of quantum theory of many particles, as well as the practical aspects of its building.