The invention discloses a dough band type fried puffed food and a preparation method thereof. The preparation method disclosed by the invention improves the problems that dough bands are difficult to shape due to adhesion and substance granules are easy to drop by adding pregelatinized starch to ingredients of a traditional dough band type fried puffed food, and the condition that the dough bands have relatively few bubbles under the condition of ensuring the excellent crispness of finished products when the widths of the dough bands are more than 5mm can be realized by adopting a particular indentation technology, and thus the taste of the finished products is improved; in addition, in the preparation method disclosed by the invention, the continuous frying without interruption is realized by delivering semi-finished products into a fryer to be subjected to immersion type continuous frying by adopting a continuous delivering net belt in industrialized production, and thus the production efficiency under the precondition of ensuring the flavor and the taste of the finished products is greatly improved.