The invention discloses a multi-function planar light source illumination lamp having a containing space and comprising a first lighting unit, a second lighting unit, a light guide unit and a control unit. The first lighting unit is used for generating a first light source arranged as a linear element. The second lighting unit is used for generating a second light source arranged as a punctual array. The light guide unit, disposed in the containing space, is used for providing the multi-function planar light source illumination lamp to generate a homogeneous planar light source. The control unit generates a control signal for controlling the first lighting unit and the second lighting unit to generate a luminous flux of the first light source and the second light source.