To provide detachable handle fixing equipment which can control opening/closing of an interior door when required by utilizing a frame of the door that opens outward since it is impossible to tentatively control the opening/closing of the interior door unless a key is installed and does not damage the appearance as there is no need to open any hole on the door and wall.

Two boards that sandwich a handle are installed on a column at a certain interval. Small holes are installed on the two boards in a way that these holes come inside of the handle. A small board is installed on one third of the outside of the bottom board. A triangle board is installed between the bottom board and the column to reinforce a body. A fixing bar is inserted into the small holes on the two boards from above.