The invention discloses a ventilation bag and a manufacturing method thereof, and belongs to the technical field of vegetable or fruit packing bags. The ventilation bag comprises a ventilation bag body (6), wherein the upper side of the ventilation bag body (6) is opened. The ventilation bag is characterized in that the ventilation bag body (6) is stitched by grass cloth (1); ventilation parts (2) are arranged on the grass cloth (1); the ventilation parts (2) are horizontally arranged around the ventilation bag body (6) in a ring form, or are arranged in a vertical surface in a strip form; and multiple ventilation parts (2) are arranged at intervals. The ventilation bag can prevent vegetables or fruits from deteriorating after long-time preservation, can hold the vegetables and the fruits for a long time, and is convenient in use; and the manufacturing method of the ventilation bag is convenient in operation and simple in process, can adjust the widths and the number of the ventilation parts as needed in the weaving process to achieve convenience in adjustment, weaves the ventilation bag once by the grass cloth, and is simple in weaving process.