The following differences exist between Grasshopper Shrimp and Shrimp Skin:

1. Size: Grasshopper Shrimp is usually small in size, while Shrimp Skin is relatively large in size.

2. ingredients: shrimp skins are mainly processed from hairy shrimp, while grasshopper shrimp are often made into shrimp paste.

3. Nutrition: shrimp skin is richer in iron, calcium, phosphorus and other nutrients, while the grasshopper shrimp is high in calcium, fatty acids and high quality protein.

Overall, grasshopper shrimp and shrimp skin are different in terms of body size, preparation of raw materials and nutrients.