The invention relates to crispy nutritional ice cream and a production method thereof, which belong to the field of food processing. The ice cream comprises the following raw materials in parts by weight: 15-20 parts of fresh milk or 10-15 parts of milk powder, 3-5 parts of cream, 10-30 parts of composite plant polypeptide, 1-5 parts of fruit and vegetable superfine powder, 15-20 parts of white granulated sugar, 3-6 parts of maltodextrin, 0.1-0.3 part of sodium alginate, 0.15-0.2 part of soluble starch and a proper amount of water. A refraction drying technology is adopted for treatment, the variety of ice cream is enriched, and the competitive advantage of the product market is increased; the composite vegetable protein is added into the ice cream, so that the nutrition and functionalityof the ice cream are increased, and the taste and texture of the ice cream are improved; the market vacancy of ice cream except summer is filled; and the ice cream has the advantages of simple formula, easily controlled dosage, simple production method, low cost, economy, practicability, convenient carrying, wide application range and suitability for large-scale industrial production.