Work in Progress: This Innovative Practice Work in Progress Paper presents how a cross-regional online and offline mixed teaching practice has been carried out by coordinating multiple local universities' laboratory resources. Owing to the COVID-19 epidemic, students could not go back to the campus but stay home all over the country. To work with an electronic system design and implementation project in the Electronic Technology Projects course, students in each team need a public physical workplace equipped with the necessary tools and instruments for circuit debugging and implementation. By utilizing local universities' laboratory resources near their homes, students of the same group could have face-to-face discussions and get offline support from local university laboratory teachers. Each team could also communicate online with course teachers on the technical scheme, detailed design, and fault debugging. While online education can share virtual teaching resources, cross-regional online and offline fusion education can further realize the sharing of entity teaching resources. Twenty-three students have fulfilled their projects in eight local universities under online and offline guidance. Such a teaching attempt has also promoted in-depth cooperation between teachers and students across universities.