In production practice, in order to prevent bees from flying away, we can install a grid on the hive door in spring and autumn when bees like to fly away, so that worker bees can move freely outside the hive through the grid, while the queen bee has to stay in the nest because her chest height is larger than that of worker bees, thus preventing bees from flying away. However, this method is only a stopgap measure. The long-term practice is to strengthen the management of bee breeding, ensure that bees have a good living environment, no noise, no vibration, no invincible harm, no pests and diseases, no sultry, no humidity, warm in winter and cool in summer, and rich sources of honey powder, so that bees can live and work in peace and contentment in time and naturally will not fly away.