目前约有70％以上的肿瘤病人需进行放射治疗，因而，放疗在当前肿瘤治疗中占有重要地位。放射治疗是一个包括多种环节，有复杂内容的完整过程。放疗技术员是放疗计划的具体执行者，是放疗能否取得预期效果的重要一环。所以，技术员的投照技术的水平，直接影响到放疗效果。本文就我院放疗中最常见的鼻咽癌投照技术的点滴应用体会作一介绍。 At present, about 70% of cancer patients require radiotherapy. Therefore, radiotherapy plays an important role in current cancer treatment. Radiation therapy is a complete process that includes multiple links and complex content. The radiotherapy technician is the specific executor of the radiotherapy plan and is an important part of whether radiotherapy can achieve the desired effect. Therefore, the level of technician’s projection technology directly affects the effect of radiotherapy. This article gives an introduction to the application of the most common nasopharyngeal cancer projection technology in our hospital.