A mounting apparatus for an expansion card includes a bracket, a circuit board mounted in the bracket, and a latching member. The bracket includes a bottom wall, a supporting wall perpendicularly mounted on the bottom wall, and a first end wall and a second end wall extending from two opposite ends of the supporting wall along the same direction. The circuit board includes a connector. The latching member includes a first hook and a mounting piece. The latching member is slidably installed to the first end wall. The mounting piece is exposed out of the bottom wall of the bracket. The expansion card is inserted into the connector of the circuit board, a front end of the expansion card is mounted to the second end wall, and a rear end of the expansion card is latched to the first hook of the latching member.