China is the top country by wheat production in the world. As of 2020, wheat production in China was 134,250 thousand tonnes that accounts for 20.65% of the world’s wheat production.

• The top 5 countries (others are India, Russian Federation, the United States of America, and Canada) account for 63.43% of it.
• The world’s total wheat production was estimated at 650,017 thousand tonnes in 2020.

Source: https://www.statista.com/statistics/255945/top-countries-of-destination-for-us-rice-exports-2011/