Why did china refuse to accept Taiwan as an independent nation?

Answer 1

If Taiwan were to take the gamble and cross that line, the argument goes, it will have moved closer to "de jure independence," or legal separation from the mainland, and Beijing would have little choice but to engage it militarily.

And yet, Taiwan has repeatedly "declared" its independence ever since the island's process of democratization began at the end of the last century.

Answer 2

If Taiwan claims its independence from China, they will be condemned by the world. For the following reasons.

Taiwan is part of China instead of an independent country. According to the statement of the US, "THE US DOES NOT RECOGNIZE TAIWAN AS AN INDEPENDENT ENTITY. Furthermore, the US does recognize Taiwan as part of china." Besides, China has "Anti-Secession Law", which states that mainland China and Taiwan belong to one China and that there is only one China and that the sovereignty of that one China is indivisible. What's more, many countries and the UN recognize that Taiwan is part of China and there is one China in the World.

For the above reasons, Taiwan is a part of China.