Traveling China during the period of chinese new year has both advantages and disadvantages. It is wise to weight up if the advantages outweigh the disadvantages.
The main advantages are:
Most of the Chinese will be at home with their families and there will be less people at tourist attractions.
It is a great opportunity to observe the local customs locals.
You will be able to see authentic celebrations such as fireworks Dragon Dancing, Lion Dancing, NiuYangge (traditional dance in northern China) and other interesting celebrations.
Temple fairs will be very popular during these days. It is a good time to experience the old Chinese cultural.
Disadvantages:
Public transportation is very crowded
most of the supermarkets and banks will be closed for a couple of days. Please prepare enough food and money during these days.
It is very dangerous to set off fireworks, it will be everywhere on the street, please stay away from kids.
Some tips on traveling China during Chinese New Year
Trains will be crowded during the period of Spring Festival, so try to avoid travelling by rail if at all possible.
Arrange your itinerary beforehand, and make reservations for flights and hotels in advance.
Collect as much information on Chinese New Year celebrations in the city you are going to stay, such as firework shows, temple fairs and other celebrative activities for the locals.
Learn enough about cultures of Chinese New Year, and get familiar about what Chinese locals will do during the festival.
Chinese New Year usually comes on the coldest days of the year in China, so tourists are advised to bring enough warm clothes.