To address issues such as low detection accuracy，significant influence of human factors on detection results，and lack of intuitiveness in detection outcomes in manual inspection，this study employs ultrasonic pulse reflection technology to develop a manual ultrasonic visualization inspection technique based on high-speed camera recognition and localization.The research focuses on achieving high-speed image transmission， recognition and localization，and the development of C-scan display software，thereby establishing a manual ultrasonic visualization inspection system platform.The system is validated using carbon fiber-reinforced polymer （CFRP） specimens.The results indicate that the system has a fast image processing speed，with a detection speed of up to 200 mm/s；the system has high detection accuracy，capable of detecting defects larger than Φ2 mm in CFRP specimens，with a lateral position resolution of approximately 1 mm；the system is highly operable，widely applicable，and provides accurate，reliable，and intuitive results.