The invention discloses a nearsightedness-preventing posture prevention and control method for students and relates to the technical field of student tools. The prevention and control method comprises the steps that firstly, a distance detection device is arranged on the head in a sleeving mode; secondly, the device is turned on, a data range is set according to data displayed on a display screen, and the display screen is placed on a table top; thirdly, a sitting posture is detected; fourthly, data is stored, when a distance sensor and an inclination sensor transmit the data to a processor, the processor stores the data and uploads the data to an upper computer, and the upper computer carries out data integration according to the uploaded data; fifthly, a scheme is made, sitting posture correction is carried out according to the integrated data, the reading scheme is made according to the data, the sitting posture is changed, and nearsightedness-preventing posture prevention and control are achieved. By means of the method, quick prevention and control can be achieved, real-time data detection, display and uploading can be carried out, and integration and scheme making can be carried out according to the data.