At present, the health code will not change color automatically along the highway. The regulations of health code in 2022 may change, but under the existing regulations, the color of health code needs to be updated in real time according to personal health status and travel conditions. If your health status or travel information changes, your health code color will also change accordingly to reflect your current health status. Therefore, in order to maintain the green status of the health code, you need to comply with various epidemic prevention measures, maintain good personal hygiene habits, avoid going to areas with high epidemic risk, minimize unnecessary travel, and at the same time, vaccinate in time and comply with epidemic prevention regulations.