Yes, in most cases your spouse can submit your China visa application on your behalf, provided you are not required to provide biometrics. The single most important document that makes this possible is a signed Letter of Authorization. Without it, the Chinese Visa Application Service Center (CVASC) staff will turn your spouse away. This process is officially known as a “China visa application by third party” and is a standard procedure, but success hinges entirely on having the correct, complete documentation prepared in advance for your spouse to present.
