In this paper, the HSV color space model is used to collect the color characteristics of modern interior design and classify them into three types: hue (H), saturation (S), and luminance (V). At the same time, it combines with the theory of color psychology to construct a PAD emotion model for interior design. Then, it selects experimental samples and data analysis tools to carry out an example analysis of interior design from the emotional perspective. The data show that the selection of people warm and bright color interior design in the interior design of the background color across the amplitude of the largest and more concentrated in the 47.5°, the main body color across the amplitude of the smallest and most stable, the accent color value of the whole relatively high, the highest 123.6°, the background color saturation is the highest of 34.6°, and the brightness of more than 63.9°, the overall presentation of the warmth of comfort indoor environment. Error-values were 0.004, 0.0698, and 0.038 in order, with the errors all below 10%. This study integrates psychology and color into interior emotional design to better create visually appropriate, comfortable, and culturally rich interior environments for people, and also to promote the development of the interior design field.