The invention relates to a three-dimensional adjusting type hanging device for a unit curtain. The problems in the prior art, such as complicated mounting process, complicated field welding processing, difficulty in adjusting and the like, are efficiently solved. The hanging device comprises an adapter and a hanging piece and is characterized in that the adapter comprises a C-shaped channel steel embedded part, a T-shaped bolt component, a toothed anti-skidding cushion block with a limiting platform, a toothed hanging plate and a lateral upright supporting plate; the toothed hanging plate and the lateral upright supporting plate are in vertical connection; the hanging piece comprises left and right hanging plates, a stopping cushion block and a connecting bolt component; a positioning plate is arranged on the lateral upright supporting plate; the positioning plate is used for limiting the left and right hanging plates clamped at the end parts of the lateral upright supporting plate; and an adjusting bolt component is used for driving the left and right hanging plates to move axially. The three-dimensional adjusting type hanging device for the unit curtain has the advantages of reasonable structural design, easiness in manufacturing, convenience in assembling and disassembling, easiness in quickly adjusting, capability of reducing the adjusting difficulty, stable and reliable connection, obviously increased working efficiency, reduced mounting cost, realization of the three-dimensional adjustment on a unit plate in front, rear, upper, lower, left and right directions, and capability of ensuring the mounting precision of the unit curtain and the project quality.