Abstract: Based on the teaching characteristics and key points of the course random signal analysis and processing, an offline and online mixed experimental teaching approach has been designed by leveraging the advantages of online teaching platforms combined with offline experimental platforms. By introducing the composition of online experimental modules, the content of offline experiments, and the platform’s functions, the blended experiment course can be implemented using both online and offline sources. Teaching practice shows that pre-releasing experimental content online is beneficial for students to enhance their mastery of basic experimental principles. Furthermore, utilizing the offline experimental platform to conduct verification and scientific research innovation experiments can enhance students’ ability to understand and apply knowledge.