An adjustable solar spotlight with various fixing methods includes a positioning stand for pivoting a lamp head, and a solar power supply module that can be connected to the lamp head through a pivot assembly, and the positioning stand can be used for plugging in the lamp head or fixing to the ground or hanging for positioning, and the solar power supply module can be deflected upwardly or downwardly relative to the lamp head and can be rotated using the pivot assembly as an axis in order to adjust angles towards different directions and improve the charging efficiency.