A mounting apparatus is configured for mounting a slide rail to a bracket. The bracket includes a flange with a plurality of mounting holes defined therein. A plurality of mounting rods is arranged on the slide rail for engaging in the corresponding mounting holes of the flange. The mounting apparatus includes a resisting member fixed to the slide rail, and an operating member pivotably attached to the resisting member. The resisting member includes a resisting portion configured for engaging with the flange. The operating member is capable of urging the resisting portion of the resisting member away from the flange.