The utility model relates to a solar-energy power supply device for an active label, which comprises a solar cell panel (1), a super-capacitor (2), a charging management circuit (3) and a lithium ion battery (4). According to the solar-energy power supply device for the active label, the super-capacitor (2) is used as the first-stage solar-energy storage medium for collecting the energy under weak light, and furthermore the electric energy which is stored to a threshold is transferred to a larger-capacity lithium ion battery (4) through the charging management circuit (3), thereby prolonging operation time of the active label under power supply by a same-volume battery, improving product performance and reducing maintenance cost.