At present, the negative effects of computers on human physiology and psychology have received increasing attention. For this reason, it is necessary to use computers scientifically and reduce the harm of computers and networks. First, we should enhance our awareness of self-care. In general, computer operators should take a break of about 10 minutes after working continuously for an hour. And it is best to go outside the operating room activities of the hands and feet and torso. Usually strengthen physical exercise to enhance physical fitness, and regular physical examination and self-psychological measurement. Second, pay attention to the working environment computer room light should be appropriate, not too bright or too dark, to avoid direct light on the fluorescent screen and interference with the light, the studio to keep ventilation and dry, can make those harmful gases as soon as possible, try to use non-strike printer to reduce noise. Third, pay attention to the correct operating posture should be installed in the center of the computer screen on the same level as the operator’s chest, it is best to use a chair that can be adjusted for height. Sitting should have enough space to stretch the feet, do not cross the feet, so as not to affect blood circulation. Fourth, pay attention to the protection of vision To avoid long periods of continuous operation of the computer, pay attention to the intermediate rest. To maintain a most appropriate posture, the distance between the eyes and the screen should be 40-50 cm, so that the eyes flat or mildly downward looking at the fluorescent screen, which can make the neck muscles relaxed, and make the eye exposure area reduced to a minimum. If there is dryness, redness, burning or foreign body sensation, heavy eyelids, blurred vision, or even eye swelling or headache, it is necessary to see an ophthalmologist at the hospital. Fifth, pay attention to supplemental nutrition Computer operators work too long in front of the fluorescent screen, the retina will be consumed by the retinas, and retinol is mainly synthesized by vitamin A. Therefore, computer operators should eat more carrots, cabbage, bean sprouts, tofu, red dates, oranges and milk, eggs, animal liver, lean meat and other foods to supplement the body vitamin A and protein. And drink more tea, tea in the tea polyphenols and other active substances will be beneficial to the absorption and resistance to radioactive substances. Sixth, pay attention to keep the skin clean computer fluorescent screen surface there is a lot of static electricity, its collection of dust can be transferred to the face and hands of the exposed skin, over time, prone to rashes, pigmentation, serious cases can even cause skin lesions and so on.