This study aims to explore the specific application of non-destructive testing technology in quality control of pouring molds,in order to improve the accuracy and reliability of mold manufacturing.Mainly using ultrasonic testing technology to detect mold materials,in order to accurately identify defect locations and evaluate material stress distribution.At the same time,infrared thermal imaging technology is used to monitor the temperature distribution and processing parameters of the mold surface,in order to evaluate the surface quality.The research results indicate that non-destructive testing technology has significant advantages in quality control of pouring molds and can effectively improve the level of quality control.I hope that through the research in this article,we can effectively improve the technological level of the mold manufacturing industry and promote its development.