Most of phosphor is extracted via.wet process and used for fertilizer production.A sustainable phosphorous chemical industry demands larger proportion of phosphor in producing high value-added phosphoric acid and phosphates and more effective utilization of associated resources.To this end,microreaction technology is worth of concerning due to its advantages in enhancing the efficiency and controllability of chemical processes,but the challenges are also critical to reveal and guarantee the robustness of microreactor and the harmony of transfer and reaction at microscale in complex chemical systems.In this talk,we discuss how to upgrade phosphorous chemical industry by microreaction technology with three examples.