Columnar polyhedral matrix LED light source

The invention provides a columnar polyhedral matrix LED light source. The columnar polyhedral matrix LED light source comprises a substrate on which LED luminous chips are arranged, a light guide pillar component arranged above the LED luminous chips, and a shell capable of fixedly installing the light guide pillar component on the substrate, wherein each LED luminous chip is composed of a plurality of LED chip arrays, the light guide pillar component is composed of a plurality of light guide pillar unit arrays, and the LED chips correspond to light guide pillar units in a one-to-one mode; each light guide pillar unit is an inverted-cone-shaped cylinder becoming larger gradually from bottom to top, and the top surface of the light guide pillar component is a light emitting plane formed by seamless splicing of the top surfaces of the light guide pillar units. By the adoption of the columnar polyhedral matrix LED light source, even color mixing of light spots projected by the LED luminous chips can be achieved, light with large angles projected by the LED luminous chips can be collected and condensed, the brightness of the light spots can be improved, and the light outlet angle can be reduced.