Hokuriku district, the heaviest snow-fall region in Japan have been sometimes suffered from a number of snow-avalanche disasters caused by abnormal snow-fall. Two snow-avalanche disasters in 1981 heavier snow-fall year at local communities, where were Sumon and Yunotani villages in Niigata prefecture, seemed to have shown the special needs of new protection measures for small mountainous communities. This paper is aimed to propose the new administrative approach having effectivity and feasibility for the protection of inhabitant damage in local communities from snow-avalanche, by using the results of analysis of past disaster cases and the concepts for other natural disaster protection systems. This paper shows the need for the new comprehensive protection system of snow-avalanche including existing protection works, warning and refuge system, legal regulation of housing construction and land development in hazard zones, and proposes an administrative direction which fills the present legal vacuum with new system.