Atmosphere projection lamp

The invention discloses an atmosphere projection lamp which comprises a lamp holder, a lamp cover and a lamp cover. The light reflecting part and the projection assembly are both contained in the containing cavity, and the light reflecting part comprises a reflecting surface which is formed by obliquely extending from bottom to top in the gradually-away direction; the motor assembly drives the light reflecting part to rotate; the light source assembly is located on one side of the light reflecting part and faces the reflecting surface; the lens component is located above the light reflecting part, light emitted by the light source assembly is reflected by the reflecting surface and then penetrates through a scattering part of the lens component to project a light ring effect, and the light ring surrounds the outer side of a pattern projected by the projection assembly; the light reflected by the reflecting surface is scattered towards all directions through the scattering part to form a colorful light ring su