本研究旨在透過犯罪生物學家Kretschmer 和Sheldon的觀點，檢證犯罪與體型之間的關係。體型分類以計算體型的身體質量指數（Body Mass Index）為基準，將體型分為過輕、正常、過重型，並針對台灣地區2005-2013年台灣21個縣市的犯罪資料，利用最小平方法與固定效果模型進行實證分析。 研究結果顯示，體型與犯罪間具有顯著關係，正常型的犯罪率最高，且在暴力、故意殺人、詐欺背信與竊盜發生都有顯著正相關；過輕型與犯罪率次高，與正常型的差別在於與暴力、故意殺人無相關；肥胖型的犯罪率最低，與犯罪都呈反向關係。進一步討論體型與經濟型犯罪之關係，結果顯示，兩者間並無明顯關係，但非經濟型犯罪在肥胖型呈現顯著負相關。據此可知，犯罪生物學家所指稱的體型學說，在現今影響犯罪的成因之中不盡完全適用。 This study aims to verify the relationship between body type and crime from the viewpoint of Kretschmer and Sheldon, who are devoted to researching biological criminology. The researcher uses Body Mass Index which is commonly used to classify underweight, normal weight and overweight instead of body type, and the cross-regional panel data of 21 countries during the period 2005-2013 in Taiwan. The empirical result from least squares method and fixed-effects model regression found that there are significant relationship between Body Mass Index and crime rate, normal weight has high crime rate and high-positive correlation with violent crime, murder, fraud and larceny, underweight has median crime rate and positive correlation with fraud and larceny, overweight has low crime rate and negative correlation with all. Take economic crime for further analysis, the results reveals body comrormation has no significant effect on economic crime but has negative correlation with non-economic crime. Therefore, body type theory is not fully applicable to the cause of crime now.