He has long been engaged in research on the development and sustainable utilization of marine biological resources. since the mid-1980s, he has paid special attention to marine ecosystem research, promoted the development of research on large marine ecosystems, participated in the formulation and implementation of major international marine ecosystem research programs, and pioneered research on large marine ecosystems and marine ecosystem dynamics in China. In China's marine fisheries biology, fisheries biology, resource enhancement and management, pelagic fisheries and marine ecosystems, a series of academic significance and significant application value of the results, for China's sustainable development and utilization of marine biological resources research into the world's advanced ranks, and made outstanding contributions.