Grigor Vitez is author of numerous children's poems in which poet's love for nature comes to expression. When poet write his poems, he does not use determined mold, he use his poems to express his experiences in childhood, nature and games. In this way, Grigor Vitez reaches through child's soul and fills it with joy. The paper interprets children's poetry written by Grigor Vitez due to the presence of motifs of nature which are related to children games as the basic starting point that poet use in his creativity. In his poetry everything is included in the game. The game can be wind, trees, branches, moon and stars, everything that can be played with in child's imagination. He also makes everything impossible to become possible and the game and the imagination never ends. The paper analyses the collection of poems written by Grigor Vitez like: If trees could walk, The game continues, Where stories grows, Why not and Open the window for spring. The aim of this paper is with analysed examples present the role of the motif of nature in children's poetry by Grigor Vitez considering the appropriateness of school age children. The role of the motif of nature in children's poetry by Grigor Vitez is big and important since it is motives are close to children, which, among other things, make Vitez's songs understand and appropriate for school age children.