The stepping motor control technology in reflection element is introduced. The sampling methods such as natural sampling method, symmetrical and asymmetrical regular sampling methods are compared, the importance of the asymmetrical regular sampling method is presented. And combined with practical application, the key steps of the control technology of the stepping motor with irregular sampling method are described. Choosing turning point and the key function of anti-dead-zone setting are presented. The application value of the technology in the realization of fast, accurate and high robust stepping motor control is defined through the practical application of the reflection element.