In the report are discussed ways of reduction of pollution of an environment by ship power installations. Among them it is necessary to select optimization of regimes of operations of main traditional ship sources of the electric power, the installation of systems of utilization of refuse energy of the exhaust gases and cooling water from main and auxiliary engines, application of new types of sources of the electric power and the using of complex automation and control systems for exhaust gases and for selecting of regimes main engine, auxiliary engine, utilize boiler, auxiliary boiler, shaft generator.