The invention discloses a Mini LED backlight module and a backlight source. The Mini LED backlight module comprises a substrate, a Mini LED light-emitting unit and packaging colloid. ,A solid crystalbonding pad, a metal circuit and a wiring terminal are distributed on the substrate, the metal circuit connects the solid crystal bonding pad to the wiring terminal and is communicated with a drivingcircuit, the light-emitting unit comprises a Mini LED red light chip, a Mini LED green light chip and a Mini LED blue light chip, the three chips are distributed on the substrate in an array interaction mode, each chip can be independently driven through the substrate circuit, and spherical packaging is carried out on the light-emitting unit in a dispensing mode or a printing mode. The red chip, the green chip and the blue chip are adopted as backlight, the color gamut range and brightness of the backlight source can be greatly improved; through interactive distribution and spherical packagingof the three chips, the light color of the backlight can be more uniform after the light rays are mixed, a diffusion plate is not needed, the backlight thickness can be greatly reduced, and partitionlight control can be conducted on the backlight through the independent driving design of the chips, so that the performances of wide color gamut, miniaturization, high brightness and high contrast are realized.