The present invention provides a large-leaf thick laver crisp chip and a related production method, the large-leaf thick laver crisp chip is prepared from a large-leaf thick laver sheet dry product, edible auxiliary materials and edible seasonings, the weight (gram) of large-leaf thick laver sheet dry product per unit area is 13.5mg / cm<2> to 20mg / cm<2>, the longest length of the leaf body is 2cm-5cm, the edible auxiliary materials are selected from sesame seeds, peanuts, pine nuts and walnuts, the edible seasonings include one or more of edible vegetable oil, sugar, malt dextrin, starch, edible salt, soy sauce and spices, the large-leaf thick laver crisp chip is prepared from the large-leaf thick laver sheet dry product by double-side baking, single and double-side flavoring, single and double-side material feeding and double-side baking, the baking temperature is 150 DEG C-180 DEG C, and the baking time is 25 seconds to 35 seconds. The large-leaf thick laver crisp chip is convenient to eat, nutritious, delicious, easy to bake, even to cook, good in baking effect, easy in attachment of accessories, accurate and easy to meter, and suitable for large-scale application.