China is one of the few countries whose search traffic is not dominated by Google in the world (along with Russia-Yandex, Korea-Naver, Japan-Yahoo, .etc). The local search engines play an important role in online marketing.
Below are some data of China search market share in 2018:

360 (Haosou) is the second search engine on desktop end, taking 18% market share. So if you target desktop traffic, 360 should be included in your marketing plan.

360 (Haosou) is the second search engine on desktop, taking 18% market share. So if you target desktop traffic, 360 should be included your marketing plan.

The young search engine Shemma (owned by Alibaba) focus on mobile search, and now is the second search engine on mobile, taking 22% market share.