In order to study the noise control technology of luxury cruise ship, the vibration noise source of luxury cruise ship should be analyzed comprehensively. Taken the noise source of main laundry in luxury cruise ship for example, the scanning sound intensity method is used to determine its sound power, the equipment sound power is used as the input of statistical energy analysis, the noise of laundry and its adjacent cabins in luxury cruise ship is forecasted, the influence of laundry noise source on cabin noise level is evaluated, and at the same time the control effect of interior decoration material in cruise ship on laundry noise is studied. The noise source of laundry in luxury cruise ship is of a great influence on the main laundry, and the typical interior decoration material in cruise ship can significantly reduce the laundry noise. The above research can provide reference for the subsequent measurement and analysis of steady noise source of all kinds of space in luxury cruise ship.