Because of excellent comprehensive properties, such as low density, high specific strength, good toughness, non-magnetic, excellent anti-corrosion, titanium and titanium alloys were widely used in aviation, aerospace, naval vessel petroleum, metallurgy, chemical industry, electric power, biomedicine and other civil markets. This paper describes the advantages and applications of the titanium and titanium alloy materials，comparatively analyzes the changes of the raw materials prices in recent years, such as titanium sponge, electrolytic nickel, copper alloy and stainless steel, and analyzes the processing pathways to achieve low cost of titanium alloy. Through calculating and analyzing the examples of titanium alloys applications by the life-cycle economic analysis method, the economical efficiency was analyzed about condensate water pipings for naval vessels made by stainless steel, copper alloy, nickel alloy, titanium and titanium alloy. Under the recent conditions in raw materials prices, materials production and processing cost, we should vigorously promote the using of titanium and titanium alloy materials.