The invention discloses a scaffold mounting seat of a concrete building, comprising a connecting rod (5), wherein a thread connector (3) arranged at one end of the connecting rod (5) is connected with a base (1); the other end of the connecting rod (5) is provided with a clamping face (8) matched with a scaffold buckling piece; a nut (4) is arranged in the middle of the connecting rod (5); after the connecting rod (5) is threaded to the base (1) through a thread connector (3) to form a whole body, the base (1) is partially pre-embedded in cast-in-place concrete; after the concrete is condensed to meet the engineering requirements, the construction scaffold is erected by matching the scaffold buckling piece with the clamping face (8); the connecting rod (5) which is screwed off in a process of detaching the scaffold in a completion process is recycled and reused; and the base (1) is kept in the concrete building. Compared with the prior art, the scaffold mounting seat of the concrete building has a simple and reasonable structure, can save a large quantity of construction materials, ensures the safety performance of the scaffold, obviously improves the mounting and dismounting efficiency of the scaffold, and the like.