In this study, the kinetic behavior and influential factors of self-assembly, fiber morphology and thermal stability of pepsin soluble collagen from grass carp skin were explored. The turbidity and self-assembly degree indicated that grass carp skin collagen had self-assembling ability although it was influenced by collagen concentration, pH, ionic strength and temperature. Under the conditions of 7–8, 3–5 mg/mL, 25–30 ℃ and 0–200 mmol/L for pH, collagen concentration, culture temperature and NaCl concentration, respectively the self-assem...