The invention discloses a quick-frozen fresh-keeping deep-fried dough stick and a making method thereof and belongs to the technical field of food processing. The quick-frozen fresh-keeping deep-fried dough stick is mainly composed of, by weight, 110-120 parts of flour special for making deep-fried dough sticks, 8-10 parts of acetylated wheat modified starch, 10-15 parts of white glutinous rice flour, 60-70 parts of water, 2-3 parts of leavening agents, 0.1-0.2 part of yeast, 3-5 parts of soybean oil, 5-10 parts of edible salt, 5-10 parts of eggs and 7-12 parts of white sugar. The flour special for making the deep-fried dough sticks, the acetylated wheat modified starch and the white glutinous rice flour are adopted, so that forming of a gluten network can be promoted, strength and gluten tenacity of the deep-fried dough stick are improved, and frost crack rate of skin of the deep-fried dough stick after quick freezing can be lowered; a low-temperature quick deep-fry method and a quick freezing method are adopted to make the deep-fried dough stick, so that water content, oil content, acid value and peroxide value of the deep-fried dough stick can be lowered, and original freshness and nutrition facts of the deep-fried dough stick can be maintained furthest.