PROBLEM TO BE SOLVED: To provide a technology capable of compatibly considering the environment and securing strength and durability when a soil structure for a building structure is constructed. SOLUTION: The method for constructing a soil structure constituting a part of a building structure includes using a mixed material obtained by kneading a soil added with a soil solidification material containing at least one of magnesium oxide and a lime series as a raw material and no cement and with water, to construct the soil structure to become a construction object. COPYRIGHT: (C)2012,JPO&INPIT