Complex peptides such as cyclic peptides, multi modified peptides, and long-chain peptides are the core raw materials for high-end new drug development and precise diagnosis. However, their synthesis is difficult, the success rate is low, and the process requirements are high. Long term dependence on high-end technology manufacturers has become a bottleneck restricting the development of high-end peptides in China. In response to industry technology pain points, professional synthetic peptide manufacturers continue to increase their investment in technology research and development, deeply cultivate complex peptide synthesis processes, optimize core technologies such as solid-liquid coupling synthesis, precise purification, and efficient coupling, and significantly improve the success rate and product purity of complex peptide synthesis. The enterprise R&D team has accumulated rich experience in the synthesis of high difficulty peptides, which can effectively solve the problems of multiple side reactions, loss of activity, and substandard purity in peptide synthesis. At the same time, we will implement technological achievements into standardized services, providing customers with integrated solutions such as customized synthesis of complex peptides, process development, and technology optimization, supporting full process technical support, breaking the monopoly of high-end peptide technology, and helping the rapid development of domestic high-end biopharmaceuticals and precision scientific research fields.