I have a Japanese visa. From Japan to Singapore, I want to go to Malaysia. Round trip from Singapore. Do I still need to apply for a Malaysian visa?

Whether you have a visa from any country or not, you are from China, and you should go to other countries like China. Visas from other countries can leave a good impression only when you apply for a visa, so it is easier to get them.

Malaysia could have been in landing visa, but it was cancelled last month.

See for yourself: /article.jsp? oid=68358 132

So we can only do it well in advance, otherwise we won't be able to enter Malaysia.