Machining of aero-engine blade-type complex curved-surface parts places stringent requirements for high accuracy， stability， and efficiency on five-axis CNC machine tools. To assess the suitability of domestic five-axis CNC equipment for this application， we conduct a systematic performance analysis and comprehensive evaluation of the SMU350 simultaneous five-axis machining center. We assess its structural configuration and empirically measure key performance indicators； combined with trial cuts on typical blade parts， these tests verify machining performance in terms of geometric accuracy， dynamic response， and operational stability. Furthermore， we develop a fuzzy-mathematics-based multi-index comprehensive evaluation model： S-shaped， Z-shaped， and Gaussian membership functions are designed； a fuzzy relation matrix and an engineering weight vector are established； and a product-sum fuzzy operator is employed to synthesize judgments from the measured data. The machine tool achieves an overall comprehensive score of 83.18， providing a quantitative method and methodological reference for assessing the application of domestically produced specialized five-axis machine tools for blade machining in the aviation manufacturing domain.