Abstract: Based on leaf area measurement experiments on six main cultivars Strawberry in southern of Jiangsu province, using DPS data processing system to analyze the relationship between “leaf length - leaf width - leaf area”, and getting to regression equations of these six kinds of strawberry on “leaf length × leaf width” and on leaf area; and setting up a common regression equation through combination of data. Data show that coefficients of determination of above regression equations are more than 0.97, relevance is extremely significant; coefficients of determination of general regression equations also reach more than 0.98, relevant test is extremely significant level, too. This paper provides a convenient, fast and feasible vivo measurement method to measure vivo strawberry leaf area.