While there are heightened geopolitical tensions involving China, credible evidence does not support the definitive claim that China is actively preparing for World War 3.
China is preparing for World War 3.

FactVerify
Source: factverify.com
Key Evidence
Official Chinese statements reject the inevitability of world war and emphasize peaceful intentions.
us.china-embassy.gov.cnus.china-embassy.gov.cnIs World War III inevitable?_Embassy of the People's Republic of China in the...
Multiple expert analyses highlight ongoing tensions but do not confirm active preparation for global war by China.
en.wikipedia.orgen.wikipedia.orgWorld War III
atlanticcouncil.orgatlanticcouncil.orgWelcome to 2035: What the world could look like in ten years, according to more...
Sensational media claims lack corroboration from authoritative sources.
theweek.comtheweek.comIs World War Three coming? What countries will be involved?
What the Evidence Shows
The claim that "China is preparing for World War 3" is a broad and definitive statement that implies an active, deliberate, and large-scale military preparation by China specifically aimed at initiating or engaging in a global conflict. Analysis of available evidence shows that while China is indeed increasing its military capabilities and engaging in strategic posturing, particularly around Taiwan, the South China Sea, and in relation to the United States, these actions are part of broader geopolitical competition rather than explicit preparation for a world war.us.china-embassy.gov.cnus.china-embassy.gov.cnIs World War III inevitable?_Embassy of the People's Republic of China in the...
atlanticcouncil.orgatlanticcouncil.orgWelcome to 2035: What the world could look like in ten years, according to more...
Some sources, including statements from U.S. Officials and media speculation, suggest concerns about China's military ambitions and potential for conflict escalation. However, these are often framed as warnings or hypothetical scenarios rather than confirmed facts.
Additionally, official Chinese sources deny intentions of provoking global war and emphasize peaceful development.us.china-embassy.gov.cnus.china-embassy.gov.cnIs World War III inevitable?_Embassy of the People's Republic of China in the... The claim is further complicated by sensationalized media content such as YouTube videos that speculate on covert actions or imminent war without authoritative evidence.
theweek.comtheweek.comIs World War Three coming? What countries will be involved? Expert analyses and strategic forecasts tend to emphasize the risks of conflict but also highlight diplomatic efforts and the complexity of international relations that make a full-scale world war unlikely at present.
en.wikipedia.orgen.wikipedia.orgWorld War III
Therefore, while tensions exist and military preparedness is ongoing as part of national defense strategies, stating definitively that China is preparing for World War 3 overstates the evidence and misrepresents nuanced geopolitical realities.