Customized home furnishings are closely connected with people's daily life, especially in the context of the continuous improvement of the consumption level, consumers pay more and more attention to the experience, individuation and comfort of the products. In this paper, OPPEIN Furnishings, a leading company in the customized home furnishing industry, is selected as a research case, and its profitability over the past five years is analyzed in depth using DuPont analysis. For the problems found in the analysis process, this paper further proposes targeted optimization strategies.