An analysis of the key factors affecting on the single production process job scheduling of the parts waiting for being processed on the key equipments for SMEs (Small Manufacturing Enterprises) is given in this paper, which include interval number, real number and uncertain linguistic value. A kind of hybrid multi-attribute decision making method for the single production process job scheduling is presented in this paper, that the parts are firstly sorted about each factor, and then the total evaluative attributive value of each part is calculated with the method of weighted arithmetic average, and thus the part with the highest total evaluative attributive value is chosen for being processed firstly. The mathematic model corresponding to the method is set up in this paper. An example is studied in this paper, and the results of the example testify the correctness of this model.