A tilting portable electronic device includes a housing, a cover, at least one supporting rod and at least one telescoping bar. The at least one supporting rod rotatably connects to the housing and the cover; the at least one telescoping bar rotatably connects to the housing and the cover. The telescoping bar includes at least two bushing sections, the two bushing sections retractably connect each other. When the cover is opened relative to the housing, the telescoping bar expands and rotates and the supporting rod rotates until the telescoping bar and the supporting rod cooperatively support one end of the cover.