It's generally possible to buy a sword in China, although the type of sword you can buy and the process for doing so might vary.

China has a long history and tradition of sword-making, particularly in the areas of longquan and shanxi, which are famous for their sword production. You can find both sharp and blunt swords for sale, often meant for decoration, martial arts practice, or collections.

However, there may be restrictions on the export of swords, particularly antiques or those of significant cultural value. Additionally, you may face restrictions or requirements when bringing a sword back into your own country, so it's important to check the relevant customs regulations.

Also, keep in mind that quality can vary greatly. There are many cheaply made decorative swords that are not suitable for any practical use, as well as high-quality replicas and functional swords. It's important to do your research and buy from a reputable source if you're looking for a high-quality sword.