During the Spring Festival holiday, the cold air was not "on holiday", and a cold wave was coming. Affected by it, the central and eastern regions of China have seen obvious cooling weather. Various industries around the country have taken various measures to actively cope with the cold wave, and fully guarantee living materials, transportation and energy. The central meteorological station issued a blue warning of cold wave on January 23 during the coldest period since the onset of winter in many places in the central and eastern regions, and the temperature in the central and eastern regions continued to decline. Affected by the cold wave, the temperature in most parts of the central and eastern China will drop from 6 ℃ to 10 ℃ from the 23rd to the 25th, and some areas will also have 7-8 gusts. In the north, there are many scenes of "frozen" people. The forecast shows that Jilin Province will usher in the coldest period since the beginning of winter from the 23rd to the 25th, and some places in the northern and eastern mountainous areas will have severe cold weather below minus 32 degrees Celsius. The reporter learned from the Hulunbeier Meteorological Bureau of Inner Mongolia Autonomous Region that, affected by the cold air, 258 of the 264 meteorological monitoring stations in Hulunbeier City had the lowest temperature lower than - 32 ℃ on the 23rd. In Erguna, Genhe and other cities in the Inner Mongolia Autonomous Region, the reporter saw that most of the pedestrians on the street were "fully armed" and heavily dressed, with thick frost on the brim, mask and eyebrows. Yang Shunan, chief forecaster of the Central Meteorological Observatory, said that the main cause of the cold wave process was that the horizontal trough turned to the vertical, leading the cold air to the south. Due to the easterly cold air path, the impact area is mainly in the east, such as the eastern part of Northeast China, the eastern part of Jiangnan, and the northeastern part of South China. Yang Shunan suggested that the cold wave process has the characteristics of large cooling range and fast speed. The public should be prepared for the cold. The public with plans to go out should be alert to the adverse effects of strong winds, cooling, rain, snow, dust and other weather on travel, and reduce the time spent near billboards and temporary structures. In the face of the cold wave and low temperature, many places have taken action to ensure the convenience of people's travel. At the same time, many local markets trade and logistics as usual, showing the vitality of people's livelihood. In the early morning of the 23rd, Beijing ushered in the first snowfall of the Year of the Rabbit. The sanitation staff braved the severe cold and quickly carried out snow removal operations in the streets and alleys. "The second day of the Lunar New Year is the day to visit relatives and friends. The sooner we clean up, the more safe the citizens will travel," said Yu Yang, a staff member of the urban machine cleaning center of Pinggu Company of Beijing Environmental Sanitation Group. In the face of the cold air, in order to ensure the safe operation of the city, the urban management departments in Hangzhou, Ningbo and other cities in Zhejiang Province have made preparations for materials and equipment. They have made preparations for spreading snow melting agent and laying anti-skid grass mats on some elevated roads and the main bridge across the river. They have placed snow shovels, brooms, shovel, sacks, etc. at overpasses, tunnels, etc., to prevent the rain and ice from affecting the travel of citizens when the ground is wet and slippery. Jinjiang Village, Manjiang Town, Fusong County, Jilin Province, located in Changbaishan District, experienced a sharp drop in temperature on the 23rd. Chi Yuxi, secretary of the Party branch of Jinjiang Village, told reporters that the cooling had no obvious adverse impact on villagers and local tourism. On the contrary, the villagers who operate the business of homestay and catering will burn the stove more vigorously, so that tourists can enter the house for heating while enjoying the snow scenery, which is more attractive to tourists. Shandong Shouguang is an important