A method for manufacturing tempered vacuum glass, characterized in that the manufacturing method comprises the following steps: preparing a metalized layer in a to-be-sealed region on the glass substrate, and tempering or heat-reinforcing the glass substrates; placing a metal solder on the metalized layer; preheating and superposing the glass substrates, by one of the following methods: a. respectively heating the two glass substrates to 60°C to 230°C, disposing the metalized layers of the to-be-sealed regions of the two glass substrates opposite to each other, and superposing the glass substrates such that the metal solder is located between the metalized layers of the to-be-sealed regions; and b. disposing the metalized layers of the to-be-sealed regions of the two glass substrates opposite to each other, superposing the glass substrates such that the metal solder is located between the metalized layers of the to-be-sealed regions, and integrally heating the two superposed glass substrates to 60°C to 230°C; continuing heating a tempered glass assembly in a vacuum chamber to keep the tempered glass assembly in the heating temperature range of step, and vacuumizing the vacuum chamber to a predetermined vacuum degree; and hermetically sealing the metalized layers in the vacuum chamber by a metal brazing process to complete the manufacturing process of the vacuum glass, wherein the metal brazing process is adopted to perform local heating on the to-be-sealed region, wherein the heating mode is laser heating, flame heating, current heating, induction heating, microwave heating, radiation heating or convection heating. preparing a metalized layer in a to-be-sealed region on the glass substrate, and tempering or heat-reinforcing the glass substrates; placing a metal solder on the metalized layer; preheating and superposing the glass substrates, by one of the following methods: a. respectively heating the two glass substrates to 60°C to 230°C, disposing the metalized layers of the to-be-sealed regions of the two glass substrates opposite to each other, and superposing the glass substrates such that the metal solder is located between the metalized layers of the to-be-sealed regions; and b. disposing the metalized layers of the to-be-sealed regions of the two glass substrates opposite to each other, superposing the glass substrates such that the metal solder is located between the metalized layers of the to-be-sealed regions, and integrally heating the two superposed glass substrates to 60°C to 230°C; a. respectively heating the two glass substrates to 60°C to 230°C, disposing the metalized layers of the to-be-sealed regions of the two glass substrates opposite to each other, and superposing the glass substrates such that the metal solder is located between the metalized layers of the to-be-sealed regions; and b. disposing the metalized layers of the to-be-sealed regions of the two glass substrates opposite to each other, superposing the glass substrates such that the metal solder is located between the metalized layers of the to-be-sealed regions, and integrally heating the two superposed glass substrates to 60°C to 230°C; continuing heating a tempered glass assembly in a vacuum chamber to keep the tempered glass assembly in the heating temperature range of step, and vacuumizing the vacuum chamber to a predetermined vacuum degree; and hermetically sealing the metalized layers in the vacuum chamber by a metal brazing process to complete the manufacturing process of the vacuum glass, wherein the metal brazing process is adopted to perform local heating on the to-be-sealed region, wherein the heating mode is laser heating, flame heating, current heating, induction heating, microwave heating, radiation heating or convection heating.