The principle of the standard acupuncture model is based on human anatomy and the theory of meridians in traditional Chinese medicine. It replicates the direction of meridians and the positions of acupoints onto a three-dimensional human model according to standard positioning, thereby achieving the combination of intuitive teaching and skills training. The surface of the model is usually marked with fourteen meridians and some extraordinary acupoints outside the meridians, which are distinguished by numbers or different colors, enabling learners to clearly identify the spatial distribution of the acupoints.

The core principle lies in transforming the flat knowledge in books into observable and touchable forms through three-dimensional display, enabling learners to understand the rules of meridian circulation and acupoint location more intuitively. During the operation training, learners can use the model to perform acupoint pressing and simulated acupuncture practice, master the Angle and depth of needle insertion, thereby enhancing their familiarity and accuracy with actual clinical operations.

Meanwhile, the standard acupuncture model also adheres to the theory of "meridians - zang-fu organs" in traditional Chinese medicine, helping learners establish the connection between acupoints and the functions of zang-fu organs. Some advanced models even incorporate modern technology to design devices with conductive or feedback functions, enabling immediate prompts on whether the needling operation is in place.

Overall, the principle of the standard acupuncture model is to combine traditional Chinese medical theories with modern teaching demands. Through a three-dimensional and operational approach, it provides scientific, intuitive and efficient support for acupuncture teaching and skills training.