Marine shipping industry is the biggest economy of the global logistics, the cost that the vessel runs includes: personnel's salary, insurance, shipping administration expense, port charges, maintenance and fuel, etc.. Among them port charges and fuel are estimated can probably take 70% of the total operating cost, and the proportion of the fuel cost may be up to 50%. So the fuel cost is a main reason for influencing the operation performance of shipping. Because the international oil price runs high in recent years, besides designing the optimization with ship type, vessel technology and development move towards the innovative study and application of the power-saving technology, in order to reduce the operating cost. In addition, in shipping management, it is main directions to move towards maximization of ship and energy-conservation to reduce the expenditure of the cost. Until high oil price and the whole world might face economic depression unfavorable factor, the motive force of shipping is unable to store, unable to reuse, so how to popularize energy-conserving actuating device and relevant environmental protection assists the energy-saving equipment, trader to boat last economic benefits greatest and how effective management energy and last greatest benefit, study the focal point for this thesis. This thesis is in Professor Zhang Yu-Shan's guidance, starts from the operating cost of shipping, discusses shipping machines and impact on operating cost of auxiliary energy- saving equipment, investigate of the shipping business to analyze and prove it. To feedback my experiences engaged in the relevant trade of the past 20 years.