Tidalirrigationis a use forthe realization of the principle of capillary irrigation techniques from plant roots. This technique could avoid generating water film on blade surface, let blades to receive more sunshine and advance photosynthesis efficiency; Increasing the utilizationrate of water and fertilizer;Providing manageablerelative humidity and reducing the plant diseases and insect pests. But for now, domestic research on related technologies is less, and the overall level is relatively backward, and the number of research papers related to the number of patents is low.Based on this situation, the efficiency of irrigation and water absorptionwould be evidently increased, and the utilization rate of nitrogenous fertilizer could be reduced by strengthening the research of tidalirrigation system and putting the system into the greenhouse. This computer-based control to achieve crop irrigation and fertilization system, will have broad application prospects.