The difference between crab paste and crab roe lies mainly in their morphology, nature and taste.

1. Morphology, crab paste is greenish-white translucent jelly-like liquid, steamed into a translucent, sticky state, and gelatinous. On the other hand, the crab yolk is a hard, orange-colored lump that becomes powdery after steaming and has an overall hard texture.

2. In terms of nature, crab paste is unique to male crabs and is mainly composed of the male parasympathetic glands and their secretions. Crab roe, on the other hand, is unique to female crabs and refers to the ovaries and digestive glands within the crab.

3. In terms of taste, crab paste is slightly sweet, very delicate, and has a kind of sticky gelatinous consistency, which can be savored by carefully chewing the crab's unique texture. And the taste of crab yolk is similar to egg yolk, incomparably delicious, through chewing can become a lot of powdery small particles.