To cultivate high caliber professionals in agricultural engineering, the knowledge point of “crop stereoscopic symbiosis technology” in Agricultural Ecological Engineering Technology course was taken as the research object, a mixed online and offline teaching model was explored and practiced, educational concepts such as “teaching by doing, learning by doing” were implemented, and information technology teaching methods throughout the entire teaching process were integrated. Specifically, based on the educational philosophy of “teaching by doing, learning by doing” and student-centered approach, a teaching plan was designed. Learning tasks were designed in conjunction with the actual production of enterprises, and a teaching strategy that combined student self-learning, post class research-based learning, and teacher knowledge imparting was adopted to exercise students’ ability to analyze independently; information-based teaching methods were integrated into pre-class, in-class, and post-class teaching processes. Pre-class, teachers release a learning task list through online platforms, and student groups complete pre class tasks; in-class, teaching focused on the cultivation of experimental operations and practical skills. Learning tasks were assigned to groups, sample points were set up uniformly, and activities such as checking the quality of farmland and land preparation were carried out separately; post-class, the teacher set up a discussion area for student groups to answer and interact, forming evaluation opinions, and the teacher reviewed and formed evaluation opinions. Practice has shown that this teaching model fully utilizes the flexibility of online teaching and the practical advantages of offline teaching, achieving an organic combination of theoretical teaching and practical operation, effectively improving teaching efficiency and quality, and enhancing students’ learning interest and comprehensive abilities to a certain extent. This article provides a reference for the teaching reform of agricultural ecology courses.