You can't. Only when the thesis is sent to the school can you get a master's degree certificate. A master's degree certificate is a certificate issued by an institution of higher learning or scientific research recognized by the Ministry of Education, which proves that students' professional knowledge and technical level after studying and researching in an institution of higher learning or scientific research department in China, and that the educational level and academic level of the grantee meet the requirements of a master's degree and have been audited by relevant regulations.