The utility model discloses a portable solar projection lamp which comprises a projection
lamp shell, a
light source plate and a power circuit, a battery box and a battery box cover are arranged on the side wall of the projection
lamp shell, a slot is formed in the battery box cover, a power-off isolation piece is arranged in the slot in a pluggable mode, and the power-off isolation piece penetrates through the slot and is arranged at the end of a battery in an inserted mode to enable the battery to be powered off. A solar panel is fixed to the top face of the projection
lamp shell, and an external power source connecting port and a switch key are arranged on the side wall of the projection lamp shell. A warm light lamp bead, a
white light lamp bead and a flashing lamp bead are arranged on the
light source plate; the switching adjustment of warm light,
white light, neutral light and burst
flash light is realized by pressing the switch key. The
LED lamp is reasonable in structural arrangement, the power-off isolation piece can be inserted to achieve power off when the
LED lamp is not used, waste of electric quantity is reduced, effectiveness and stability of a battery are improved, convenience and effectiveness of operation are improved,
irradiation requirements of different conditions are met, convenience of use is improved, and carrying and using are convenient.