To provide a variable lighting-sheet with heat-shielding and heat-releasing properties, which can prevent a temperature of the sheet from excessively rising and has superior heat-shielding properties in summer, and can take in heat contained in radiation of the sun and has heat-storing properties and lighting properties in winter.

A variable lighting-sheet 1 with heat-shielding properties is a flexible sheet including a heat-control layer 2. The heat-control layer 2 has a sea-island dispersion structure comprising an incompatible mixture formed of a synthetic resin 4-1 including a thermochromic material 8 and a synthetic resin 3-2 including a metal-insulator transition substance 9, and also is a resin layer that changes a heat-shielding and heat-releasing effect by heat.