Preparation technology of singly-frozen steamed and cooked South America white shrimps

The invention discloses a preparation process of single-frozen steamed and cooked South America white shrimps. The preparation process comprises the following steps: step 1, pretreating raw materials; step 2, single freezing storage; step 3, secondary treatment; step 4, cooking and quick-freezing; step 5, packaging and freezing storage; step 6, loading and transporting exits; in the first step, the rinsing temperature is less than or equal to 10 DEG C, and the rinsing time is less than or equal to 1 minute; in the step 2, the rinsing temperature of the secondary rinsing is less than or equal to 10 DEG C, and the time is less than or equal to 1 minute; the raw materials which cannot be processed immediately are subjected to single-freezing storage, so that the freshness of shrimp meat can be kept, and the quality of the product is guaranteed; according to the method, different treatment procedures of the South America white shrimps are fused, so that the simultaneous production of two products of shelling and