通过对南瓜（大磨盘）和瓠瓜（长瓠子）叶长、叶宽、叶长×宽与叶面积的一元和多元回归分析并结合实验验证，得出南瓜叶面积的测算公式为ｙ＝０８３８ｘ－０５５８，ｒ＝０９８５和ｙ＝－５９６８＋００５３ｘ１＋０５３０ｘ２＋０８２０ｘ３，Ｒ＝０９９１；瓠瓜的叶面测算公式为ｙ＝０９０３ｘ－２４４４３，ｒ＝０９８３和ｙ＝５７６５６－８５２１ｘ１－１９５１ｘ２＋１１８５ｘ３，Ｒ＝０９８９。两公式都以复回归公式测算最为精确。 Through the univariate and multiple regression analysis of the leaf length, leaf width, leaf length × width and leaf area of ​​pumpkin (macadamia) and gourd (macrophylla), combined with the experimental verification, the formula for calculating the leaf area of ​​pumpkin was y = 0  838x-0558, r = 0985 and y = -5968 +0053x1 +0530x2 +0820x3, R = 0991. The formula for calculating the leaf surface of Yagua is y = 0903x- 24443, r = 0983 and y = 57656-8521x1-1951x2 + 1185x3, R = 0989. The two formulas are complex regression formula to calculate the most accurate.