An electronic device includes an enclosure and a fixing assembly attached to the enclosure. The fixing assembly includes fixing portion rotatably attached to the enclosure, a resilient element fixed to the fixing portion and an adjusting portion non-rotatably fixed to the enclosure. The fixing portion and the enclosure cooperatively define a receiving room to receive the adjusting portion and the resilient element. The resilient element includes a first engaging portion and a second engaging portion. The adjusting portion is substantially circle-shaped and defines a plurality of positioning teeth configured on a peripheral circumference of the adjusting portion. Friction between the positioning teeth of the adjusting portion and the first and second engaging portion of the resilient element causes the first engaging portion and a second engaging portion tightly engage with the plurality of positioning teeth to non-rotatably position the enclosure at different angles relative to the fixing assembly.