The invention discloses a pepper salt sunflower seed and a processing method thereof. The processing method comprises the following steps: with sunflower seeds as raw materials, and with star anise, fennel, anise, pepper, salt, sodium saccharin, sodium cyclamate, AK sugar and water as additives, sorting, soaking, drying, frying and cooling, wherein each 1000 parts of sunflower seeds need the following additives in parts by weight: 1-2 parts of star anise, 1-2 parts of fennel, 1-2 parts of anise, 2-3 parts of pepper, 5-7 parts of salt, 0.05-0.1 part of sodium saccharin, 0.3-0.6 part of sodium cyclamate, 0.01-0.05 parts of AK sugar and a proper amount of water. Spices are used for compounding and soaking the sunflower seeds, and the sunflower seeds are processed by high temperature frying technology, thereby shortening the processing time of the sunflower seeds, and meeting the requirements of different consumers on original flavor and (or) pepper salt flavor, and thus the adaptability of the product is better. The pepper salt sunflower seed disclosed by the invention is not only reasonable and practical in processing method, but also is simple in operation and good in effect, thereby being conducive to wide promotion.