A glass panel in which spacing members (2) are interposed between a pair of glass sheets (1A, 1B) and a heat-fusible outer periphery sealing portion is provided along the entire outer periphery of the two glass sheets (1A, 1B) for sealing the space (V) between the glass sheets (1A, 1B) under a pressure-reduced condition. A linear expansion coefficient ( alpha 1) of one (1A) of the glass sheets (1A, 1B) and a linear expansion coefficient ( alpha 2) of the other glass sheet (1B) are set within a range which satisfies a predetermined relation expression.