Quality infrastructure is the guarantee for high-quality industrial development, the driving force for technological innovation and industrial upgrading. The "National Quality Infrastructure (NQI) Theme Forum on Promoting the High-Quality Development of Nanotechnology Industry" will be organised and held for the first time in the Nano Expo. The forum will focus on the core elements of NQI - metrology, standards, certification and accreditation, inspection and testing, etc., and analyse how to enhance the overall quality and competitiveness of the nanotechnology industry through the synergistic effect of these elements. Famous experts and scholars in the field of nanotechnology will be invited to give keynote speeches and share the latest research results and developments in the fields of nano-metrology, nano-standards, nano-testing technology. It is hoped that the forum will strengthen communication with nanotechnology enterprises, understand their needs for high-quality development in the fields of metrology, standards, testing, certification, etc., help them solve problems, promote the formation of a unified, open, competitive and orderly market environment, and provide a strong guarantee for the sustainable development of the nanotechnology industry. We sincerely invite all scientific and technological personnel and industry representatives to participate in this conference!