Strap for luggage board

A strap for a luggage board is provided to improve the operating performance of the luggage board and prevent the strap from being stuck between the boards according to the installation of the drawing-type strap apparatus. A strap for a luggage board comprises a housing(10) formed with a slit(11) at one side; a webbing(30) installed in the housing, mounted by a control unit(20) to control the drawn length by elasticity, and withdrawn through the slit; and a knob(40) attached at the end of the webbing. The control unit contains a moving bar(22) where the end of one side of the webbing is fixed, and moved along a guide groove(21) formed in the housing; and an elastic body(23) positioning the moving bar at the right place.