旧石器时代晚期是人类社会蓬勃发展的阶段,出现了一系列新技术,社会组织结构更复杂化,人类的生存领域扩展,认知能力有了突破。细石叶技术即该阶段极具特征性的石器生产技术,涉及有针对性的原料选择、石核预制、软锤及间接剥片技术的运用等,是该阶段人类实现适应生存的重要手段。根据形态特征和地理分布,细石器技术产品分为两大类:一类是几何形细石器 Late Paleolithic stage is the stage of vigorous development of human society, there have been a series of new technologies, the structure of social organization is more complicated, the survival of mankind expanded, cognitive ability has been a breakthrough. Fine stone leaf technology that is characterized by the stage of the stone production technology, related to the selection of raw materials, pre-nuclear stone, soft hammer and indirect stripping technology, etc., is an important means to achieve human survival at this stage. According to morphological characteristics and geographical distribution, fine stone technology products are divided into two categories: one is the geometric fine stone