This article shows, according to the characteristics of the factors affecting the optimum plane arrangement of equipment, the process of integrating the optimum plane arrangement of equipment into its mathematic model by the structure of distribution of pedlary through proper transformation. 本文给出了,依据影响设备平面布置因素的特点,经必要的变换,将设备最优平面布置问题,归结为货郎问题构造其数学模型的过程;