A glass layer 3 is irradiated with laser light L1 for temporary firing, so that a main portion 32 of the glass layer 3 excluding a one portion 31 thereof and extending like a ring open at the one portion 31 is molten and fixed to a glass member 4. As a consequence, the one portion 31 of the glass layer 3 in which the glass frit 2 is not molten exists between one end 32a and the other end 32b of the glass layer 3 fixed to the glass member 4. Superposing a glass member 5 on the glass member 4 with the glass layer 3 interposed therebetween in this state and irradiating the one portion 31 and main portion 32 of the glass layer 3 with second laser light L2, so as to fuse the glass members 4, 5 to each other, can prevent leaks from occurring in the glass layer 3, thereby making it possible to manufacture a glass fusing structure 1 which requires hermetic fusing.