The utility model relates to an installation device for an electronic micro-balance, which comprises a balance table, a weighing operation table and an air-flow preventing cover. The balance table is fixed on a load-bearing post or a load-bearing wall, and the distance from the balance table to the load-bearing wall is within 1 to 20cm; a common tabletop which is fixed with the tabletop of the balance table in a matching manner is cut down from one edge of the weighing operation table, both the length and width of the common tabletop are 1 to 3cm larger than those of the balance table, and the distance from the common tabletop to the load-bearing wall is within 1 to 20cm. The balance table and the weighing operation table do not have any direct connecting parts. The air-flow preventing cover made of transparent materials is fixed on the weighing operation table, the distance between the edge at the lower part of the surface at the rear of the air-flow preventing cover and the balance table is within 1 to 2cm, and an opening convenient for operation is arranged on the surface of the air-flow preventing cover towards an operator. With good vibration preventing effect, the installation device for the electronic micro-balance is not limited by floors and can effectively prevent impact of vibration, air flow and humiture.