The word "bamboo horse"comes directly from the game of "riding bamboo horses",and was fixed as an idiom with"green plum"after the literati adopted it into the poem.Due to geographical limits,in the northern region of China,there were actually a large number of behaviors of"riding tree horses",but"bamboo"and"horse"have always been closely integrated in the language,which reflects the profound cultural background of bamboo and horse in ancient China.Based on literature records and unearthed objects,this paper analyzes the common cultural orientation of bamboo and horse,as well as the imitation basis and material sources of children's game of"riding bamboo horses".It is believed that bamboo and horse have a common cultural background of dragon,and the ancient cavalry combat mode of riding bamboo is the direct imitation object of game of"riding bamboo horses".The widespread use of bamboo in people's production and life has provided a direct and convenient material source for children's games.It is not an accident that children 's game of"riding bamboo horses"with bamboo instead of horses,and future generations'choice of the image of"bamboo horses"into the text,but a reflection of the extensive use of bamboo in ancient life as well as that bamboo and horses were important war materials,and also a reflection of the physical symbol and dragon worship under the background of dragon culture.