远古人类使用的打制石器在发展过程中是从大变小的,中石器时代的石器器型特征主要为几何形、斜方形、不等边三角形和新月形等。细石器是复合型工具,是随着工具的发展而发展起来的。有了复合工具的发明,才有了为镶嵌而使用的细石器。本文主要对我国细石器的起源进行分析,探讨中石器时代我国细石器的特征及分布。 The stone tools used by ancient humans were greatly reduced in the process of development. The stone tools in the Middle Stone Age mainly consisted of geometric shapes, rhombic shapes, equilateral triangles and crescent shapes. Fine stone is a composite tool, is developed with the development of tools. With the invention of a composite tool, there was a fine stone used for setting. This article mainly analyzes the origin of fine stone in our country and discusses the feature and distribution of fine stone in our country in the Middle Stone Age.