The invention provides a material storing device for constructional engineering and belongs to the technical field of building construction. A supporting frame comprises at least four supporting bodies; each supporting body comprises a pedestal and an upright post; each upright post is provided with a plurality of sleeves; the upper part of each upright post is provided with an angle regulating device; each set of storing unit comprises a cross brace, a lifting ring and a universal wheel; the two ends of each cross brace horizontally extend toward the outer side to form horizontal rods; the end part of each horizontal rod is bent downwards to form a vertical rod; every two lifting rings are correspondingly arranged on the horizontal rods at the two ends of the corresponding cross brace; the universal wheels are arranged at the bottoms of the cross braces in a spaced manner; the vertical rods at the two ends of each storing unit are correspondingly inserted into the sleeves of the upright posts which are arranged oppositely; a shielding device comprises a controller, an alarming machine and two shielding plates; the top of each shielding plate is provided with a humidity sensor; oneshielding plate is connected with the angle regulating device on the upright post at one side; and the other shielding plate is connected with the angle regulating device on the upright post at the other side. The material storing device is reasonable in structure, realizes classified storage of building materials and lowers the engineering cost investment.