Snake venom peptide is a substance secreted by the snake glands of venomous snakes. It has pharmacological effects such as analgesia, hemostasis, inhibition of thrombosis and anti-tumor. Some snake venom preparations have been made and used in clinic. However, because snake venom peptide is the most complex composition of animal poisons, each snake venom contains active ingredients, roughly estimated to be at least 20, mainly including various toxins, enzymes and active peptides, most of the active components directly into the body may cause the body to produce serious side effects, such as cardiotoxicity, neurotoxicity, etc. These side effects are the main reasons that limit the application of snake venom preparations in clinical treatment.