A puzzle device for teaching comprises a base where a slot is provided on one side for inserting at least one image card, and a plurality of rotatable turning parts are provided thereon. A plurality of indicator units is set on each turning part, and a plurality of groups of quiz and question units are set on recto of each image card. Each quiz unit includes a question-description unit and a sign unit of the same group. Besides, the turning parts are set next to the question units respectively. Thereby, a user can find the question-description unit according to the question unit on the image card, and then can turn the turning part according to the indication of the sign unit to match the indicator unit and the sign unit.