A reflective decorative panel comprises a base implemented as a module of the panel, the base having restraining members on which reflective elements are arranged. The base is configured as a lattice framework having longitudinal and transverse bearing stripes, and the restraining members comprise rods each having a restraining head and used for accommodating the reflective element. The restraining head has a tapered shape towards its free end, and the restraining members are casted integrally with the base. At edge portions of the base, support members are provided with connection slots for connecting modules. The restraining members comprise the support members, and the support members have inner longitudinal cavities in which the rods with the restraining heads are provided. The restraining head comprises a vertical slot used for putting on the movable reflective element.