Electron microscope technology has been widely used in agriculture, forestry, medical biology and other research fields, and has become an indispensable experimental method in basic research work in life sciences. According to reports, the conference is held every two years. Due to the epidemic and other reasons, this series of conferences was restarted after seven years of vacancy this year. The three-day conference brought together nearly 400 domestic experts and scholars, front-line electron microscopy workers and related Representatives from instrument companies attended and discussed the cutting-edge applications and development trends of electron microscopy technology in agriculture, forestry, biomedicine and many other fields.