The utility model discloses an LED projection lamp which comprises an LED light source module, an enclosure wall, a support and a power source box. The light source box comprises a box body, a power source, a base and a connecting block. The support comprises a basket support body and a connecting rod. The power source box is fixed to the upper end of the enclosure wall through the connecting block. The support is fixed on the enclosure wall. Being a semi-closed space, the LED projection lamp saves the cost, is good in heat-dissipating property, convenient to assemble and disassemble, and capable of being applied to outdoor illumination occasions such as large courts, squares and airports, the installing angle can be adjusted, and the illumination effect is improved.