Work method for finishing inner wall surface of building

A work method for finishing an inner wall surface of a building, the work method comprising:

• a) attaching a finishing tape to at least one of a board joint, a wall surface joint, and a wall surface crack section;
• b) cutting the finishing tape after attaching the finishing tape by a predetermined length;
• c) repeating steps a) and b) for a space to be finished;
• and
• d) applying a paint or a wallpaper to an inner wall surface of a building including a surface onto which the finishing tape is attached,
• wherein the finishing tape is a finishing tape (100) for painting work, the finishing tape (100) for painting work includes an exterior paper (10) having a first surface and a second surface, an interior paper (20), and a coating layer (30) formed on one of the first and second surfaces of the exterior paper (10), exterior paper adhesive layers (41) are formed on one of the first and second surfaces of the exterior paper (10) at opposite sides of the coating layer (30) along a longitudinal direction of the exterior paper (10), the coating layer (30) is formed between the exterior paper adhesive layers (41), an interior paper adhesive layer (40) is formed over a first surface of the interior paper (20), and a second surface of the interior paper (20) is placed on the coating layer (30) so that the interior paper (20) and the coating layer (30) are provided in a non-adhesive state.