The invention provides a power supply module fixing mechanism. The power supply module fixing mechanism comprises a power supply module body and an operating lever, wherein the power supply module body comprises a front cover and an upper cover adjacent to the front cover; the operating lever is pivoted on at least on one side of the upper cover, and the operating lever is attached to the front cover when in a first position. According to the power supply module fixing mechanism, a user is provided with a more convenient holding mode, and the procedure of removing the power supply module bodyfrom the electronic equipment is simplified; besides, a securer uninterruptible power supply mechanism is provided for the electronic equipment.