Are the surnames of Japanese and China people the same?

Yes, I used to have a book named in the school library. I read it in a reference book.

And a lot ~

For example, Liu, Li, Wang and Zhang, these common Japanese surnames are also found in Japan ~

There are China's compound surnames, such as Sima, Ouyang and Japanese.

There are also Japanese surnames with the same place names as China, such as Henan, Hebei, Yellow River and Jiangxi.

You should read that book when you have a chance. Some surnames are funny ~