A housing assembly (10) and a portable electronic device (100) using the housing assembly is provided. The housing assembly includes a main body (12), a first decorative member (14), and a second decorative (16). The first decorative member has a first appearance, and the first decorative member (14) is mounted to the outer wall of the main body. The second decorative member (16) has a second appearance that is different from the first appearance, and the second decorative member (16) is mounted to the outer wall of the main body (16). The portable electronic device (100) further includes an another housing assembly. The housing assembly is assembled with another housing assembly).