Practical teaching is an important way to cultivate diversified and innovative talents. The analytical testing method is a practical course that students of science, engineering, agriculture, medicine and other disciplines must master. The problems existing in the course is pointed out, including outdated content and separation from industrial demand. With the help of the advantages of the public technology platform, a set of “teaching-research-industrialization” trinity practical teaching mode and “two-step method” teaching process is proposed. The teaching subject of the course is transformed from a professional teacher to a public technology service platform, which makes the “practice” feature of the course more obvious. The reform program provides an important way and method to cultivate diversified and innovative talents.