A sterilization apparatus comprises a base, a plurality of wheel bodies, a bracket unit, an extension unit and a disinfection unit. The wheel bodies connect and support the base. The bracket unit is coupled to the base and extends upwardly from the base. The extension unit includes an extension arm, one end of the extension arm is pivotally connected to the bracket unit, and the extension arm has a mounting surface. The disinfecting unit is disposed on the mounting surface corresponding to the extending arm. The extension unit is switchable between an unfolded state and a collapsed state. In the unfolded state, the extension arm is outwardly deployed by the bracket unit and the mounting surface faces downward. In the folded state, the extension arm is The bracket unit is folded down to be located on one side of the bracket unit.
