ChinaSo is a national level search engine jointly founded by seven central news agencies in China, established on March 1, 2014. It is jointly launched by institutions such as People's Daily, Xinhua News Agency, and CCTV, aiming to provide authoritative information search services. China Search not only provides search for news, web pages, images, and videos, but also adds vertical search content such as national conditions, social sciences, and theories to meet users' needs for unique information in China.