改革开放以来,中国流动人口大规模出现,农村剩余劳动力大批量向城市转移,被专家指称为“制度性孤儿”的留守儿童群体随之出现。本世纪初开始,留守儿童群体因其数量庞大、增长快速、牵涉面广、敏感度高、问题多发、负面影响深远等特点引发全社会持 Since the reform and opening up, the floating population in China has appeared on a large scale, and large quantities of rural surplus labor force have been transferred to the cities. The left-behind children groups that are referred to by experts as “institutional orphans” appear subsequently. Since the beginning of this century, the left-behind children have been triggered by the characteristics of their large number, rapid growth, extensive coverage, high sensitivity, multiple problems and far-reaching negative effects.