在CNC控制器的應用調整上，參數對於加工的速度、精度等結果，都是很重要的影響因素，但由於在職場上多以師徒式的方式在教導如何設定參數，所流傳下來的參數設定方式，大多是以試誤法為基礎的嘗試經驗，這常常導致耗費過多的時間在參數調適上，而效益及效率亦不見得好。因此，本研究嘗試要找出最佳化加工參數的過程，主要是透過田口方法選出關鍵性的實驗參數，以田口直交表設計實驗參數組，並設定各個實驗參數的高低水準，最後，記錄實驗結果及進行資料分析。本研究以國內一家著名企業的CNC控制器為例，驗證本研究所提的最佳化加工參數過程，研究結果顯示所找出的最佳化加工參數，可以在加工時間上縮短最多62.52%的時間。

In the application and adjustment of a CNC controller, parameters are critical factors influencing processing speed and precision. However, the mentoring method commonly adopted in workplaces to instruct employees to set parameters based on experience derived from trial and error requires excessive time on parameter adjustment and does not necessarily attain satisfactory outcomes and efficiency. Thus, the present study aims to determine a procedure for optimizing process parameters. The Taguchi method was employed to select key experimental parameters. The Taguchi orthogonal array was applied to design experimental parameter sets and set the parameters levels. Then, experimental results were recorded to facilitate data analysis. This study used CNC controllers developed by a renowned Taiwanese firm to verify the proposed process parameter optimization procedure. The results revealed that the proposed procedure reduced the processing time by a maximum of 62.52%.