Through data collection, house mapping and interviews, this paper takes Shengli Village of Xinbin Manchu Autonomous County in Liaoning Province as an example to study the process of changes and the causes of traditional Manchu residence in modern times. The results are as follows:<br> 1) In order to securing privacy and pursue the comfort and convenience, the vestibule and Livingroom are appeared which the traditional Manchu residence don't have. The vestibule has the effect of blocking external cold air and lampblack from kitchen into the bedroom, but because it is very cold in winter so it is limited to the function of the passage between the entrance, kitchen and bedroom. Although the Livingroom (in bedroom) is an attempt that the young household divide the bedroom's privacy and functional differentiation, but there is no heating equipment so the number of the Livingroom (in bedroom) is not many. Instead of it, the Livingroom that formed by the enlargement of the vestibule has been popular since 1990s under the influence of urban housing. Setting up radiator in the Livingroom and the glass entrance at the gate is a mainstream, if introduce electric heating equipment such as air conditioners and electric heaters into village in the future, there is high possibility that the Livingroom will replace the Wanzi Kang to become the center of the new rural housing.<br> 2) The characteristics of the spatial composition of traditional Manchu residence are disappearing as the modernization. In Northeast China where the cold season lasts for 5 months, the heating is the most important necessary factor of building in winter, Wanzi Kang in bedroom of traditional Manchu residence is the most typical heating facility and the public and private life activities such as hospitality, togetherness, meal, sleep, etc. are all on it. But since the 1980s, the private space has been trended to reduce and the public space has been trended to expand, in order to expand the area of Livingroom and kitchen and the number of bedrooms, the spacious bedroom with Wanzi Kang is reduced, this is the method that “一” type Kang also can ensure the heat preservation effect. The most of people who still use Wanzi kang are elderly and the yang people prefer to sleep with “一” type Kang and bed.<br> 3) In recent years, the human feces has not been used as fertilizer, the Pit toilet are gradually removed, especially since 2000, water supply and sewage facilities have been partially developed and in order to improve the sanitary and convenient, there are 12/20 cases have been equipped with indoor toilets and the shower is also advanced. It is estimated that it will be popular in the future and presumed that there is a high possibility that the plane composition “bedroom + Livingroom + kitchen + toilet/shower” will be mainstream.