A wheel securing structure for trucks is provided. The securing structure generally includes iron screwshaft liners installed in keyholes of mounting parts of aluminum wheels. The bolts of an assembling part correspondingly penetrate the holes of respective screwshaft liners. A first folded edge and a second folded edge are formed on two terminals of each screwshaft liner to respectively insert into conical pits formed on the mounting part of a wheel. The nuts screw onto the bolts of the assembling part to secure the wheel onto the assembling part. When the trucks pass bumpy roads, relative motion caused by vibrations occurs between the wheels and the assembling part, and friction is generated between various parts. The screwshaft liner protects the soft aluminum wheel from being directly rubbed by the bolts, nuts, and the assembling part. Accordingly, the aluminum wheel is made suitable for trucks and other heavy vehicles.