A century of struggle and a century of endeavor—red heritage stands as the chronicler and witness to this grand journey and monumental struggle, serving as a living textbook for studying the history of the Party and the history of New China. In consideration of the spatio-temporal distribution and the expression form of red architecture in Jiangxi province, this paper combines a dual approach of “historical cost and modern technology.” By applying the theory of quadruple helix along with digital technologies, this study seeks to develop a theoretical model for the digital transformation of red architecture in Jiangxi. Digitalized resources are included into blended learning programs for cost engineering using online learning platforms. In the process of digital transformation, UAV orthophotography creates 3D point cloud data which is processed with hierarchical thinning algorithms. Advanced registration using enhanced ICP registration technique and rotational constraint can be used for building a 3D model. Based on the above study, an experiment on blended learning was performed, where the 3D models of the red construction heritage were applied to teach engineering cost students at a university. The outcomes showed that the accuracy of the 3D models is very high, and there is a low level of discrepancy between the models and reality. In addition, the application of 3D models in the teaching process greatly improves students’ academic results and learning interest.
