Color word provides cultural clues of every ethnic, hence, it is an important gateway to the different ethnic and its culture. Color word can both enhances teaching and learning outcome, to assist learner to master the development pattern, understand in depth as well as to expedite the understanding process. This research is to compare five premier colors which included green, red, yellow, white and black in both Mandarin Chinese and Thai Language. This research consists of five chapters which the first chapter discuss in depth in objective of the research, target and research methodology. Chapter Two to Four emphasis on the comparison of color words that appear in Mandarin Chinese and Thai Language as well as teaching approach is suggested in order to achieve a better learning outcome. Chapter Five is the conclusion of the entire research.