1, the appearance is different.

The legs and pincers of river crabs will have a lot of small hairs, and most of them are green, without bright colors;

Sea crabs not only have no small hairs, but also have many kinds and different colors.

2, different taste. River crabs, whether steamed or boiled to eat, the meat is very firm and delicate; and sea crabs, although large, but its meat is relatively loose, eat the flavor is not very good.

3, nutrition is different. River crabs and sea crabs in nutrition are different, the same weight, river crabs, vitamin A, vitamin B1, vitamin B2 and vitamin E content is higher than sea crabs, while calcium, potassium and magnesium content is lower than sea crabs. However, the cholesterol content of river crabs is more than twice that of sea crabs.