Yes, in most cases, someone else can submit your China visa application on your behalf, but it is not as simple as just handing over your documents. The success of this process hinges entirely on having the correct authorization and understanding the specific rules of the Chinese Visa Application Service Center (CVASC) or consulate handling your application. While using a third party, whether a professional visa agent or a trusted friend, can save you time, the responsibility for the accuracy and completeness of the application remains squarely with you, the applicant.