The invention discloses a solar-power device, comprising at least two strut members, a thin film solar piece and a plurality of fixing components. The strut members are separately arranged at a preset spacing, the thin film solar piece is connected between two adjacent strut members, and the fixing components are arranged on the strut members and can at least detachably fix the transverse side edges of the thin film solar piece. As separate strut members are provided, the thin film solar piece can be conveniently fixed between the strut members and detached and replaced conveniently, thus greatly improving utilization flexibility of the solar-power device.