The purpose of this study was to investigate the children’ spatial language development. We investigated three- to six-year old children’s ability to understand 6 words in pairs for this study: near-far, before-behind, right-left. The results showed that before-behind was easiest for children to understand, and near-far was understood correctly. While right-left, being most difficult. Understanding the right and left from one’s own viewpoint was easier than from another’s viewpoint. The findings are discussed in relation to general language development, and in terms of reference frame conflict.