Abstract: 【Objective】 To review and summarize the research status and progress of micro-jet irrigation technology under plastic film in greenhouses in the past 20 years, analyze the impact of this technology on greenhouse production in the hope of providing theoretical basis and technical support for its application in facility agriculture water-saving irrigation. 【Methods】 The advantages and disadvantages of current greenhouse irrigation were summarized by summarizing domestic and foreign research literature and comparative analysis.The application research status and research results of micro-spraying technology under plastic film in greenhouse irrigation were analyzed and summarized. 【Results】 At present, China accounted for 35% of the world’s microirrigation area and scholars mainly studied the influence of spray angle and laying length of microspray belt on soil moisture distribution and crop yield.Submembrane microspray technology were successfully used in field land planting and greenhouse irrigation, including corn, tobacco, sugarcane, fruits and vegetables.Compared with conventional irrigation, drip irrigation under mulch had made some progress based on plant physiology and ecology, and its water-saving effect was slightly inferior to drip irrigation.But it was limited in water source shortage areas, but it has stronger anti-clogging ability, lower installation cost, and was limited to semi-arid areas. 【Conclusion】 As a new water-saving irrigation method, under plastic film micro spray irrigation has good anti blocking ability and low cost.It has significant advantages in reducing ground evaporation and improving crop water use efficiency.It is one of the irrigation methods that can effectively control and improve soil secondary salinization.Truly, submembrane microspray irrigation technology can promote the green development of facility agriculture