Through the analysis on the earth landscape colors in the beautiful countryside, this paper stated that the color is the most sensitive element when people touch the countryside. The quality of landscape color directly influences the people's mood when appreciating the beautiful countryside. Taking respecting natural environment, extending the historical context, and conforming to aesthetic taste as the precondition, this paper made optimal design of earth landscape colors in beautiful countryside using the hue unifying method, color contrast method, and color rhyme balancing method.