An electronic device includes a main body, a battery, and a battery fixing assembly. The main body defines an assembling groove and a receiving groove communicating with the assembling groove. The battery is received in the assembling groove. The battery fixing assembly comprises a pivot shaft and a fastening member sleeved on the pivot shaft. The pivot shaft is positioned in the receiving groove. The fastening member is capable of rotating on the pivot shaft to engage with the engaging portion of the battery.