The purpose of this study is to describe type, structure and function of onomatopeia in Indonesian children\u27s songs. Type of this study is qualitative study and explain the result study according to descriptive. Results of the analysis showed that in Indonesian children\u27s songs there are three types of onomatopeia that is (1) type of onomatopeia that imitate the sound of the object, (2) type of onomatopeia that imitate the sound of the animal, and (3) type of onomatopeia that imitate the human\u27s feeling. Structure of onomatopeia in Indonesian children\u27s songs classification based on syllables that is (1) monosyllables, (2) bisyllables, and (3) multisyllables. Function of onomatopeia in Indonesian children\u27s songs there are three function that is (1) function of onomatopeia showed that imitate the sound of the object, (2) function of onomatopeia showed that imitate the sound of the animal, and (3) function of onomatopeia to give effect for listener songs