The world s most spoken language. Mandarin Chinese has 845 million first language speakers mainly in China, Malaysia and Singapore. There are also significant numbers of people who speak Chinese as a second language throughout the world. China is blessed with some of the richest lands in the world, and is home to one of the world s oldest civilisations. Today China is the most populous country in the world with over 1.3 billion people, approximately one-fifth of the world s population.