A storage frame for tool rack assemblies has a box and multiple rack holders. The rack holders are held between two holding bars in the box. Each rack holder has a board and two clamping devices for holding multiple tool rack assemblies on the board. Each clamping device has a front clamping element and a rear clamping element mounted respectively on two surfaces of the board and connected to each other. The front clamping element has a clamping bar and multiple clamping protrusions formed on and protrude from the clamping bar at a side facing the other clamping bar and are parallel with each other. Accordingly, multiple tool rack assemblies can be held and displayed in the box at a stand condition regularly.