An electronic device shell can be configured to compactly receive at least one expansion card. The electronic device shell comprises a bottom plate, a front plate connected with a front end of the bottom plate, and a rear plate connected with a rear end of the bottom plate. The front plate is recessed away from the rear plate to form a first lead portion. The expansion card is located on the bottom plate and between the front plate and the rear plate. One end of the expansion card is secured on the rear plate, and the other end of the expansion card is received in the first lead portion.