The invention discloses an LED light controller. The LED light controller comprises a power circuit, a dimming control circuit, a general control circuit, an LED driving circuit and an LED combined lamp; the power circuit is connected with the general control circuit; the dimming control circuit is connected with the general control circuit; and the LED driving circuit is respectively connected with the general control circuit and the LED combined lamp. A computer case comprises a case body and the LED light controller according to any one of claims 1-8; the case body is provided with an installation region; the LED light controller is arranged in the case body; and the LED combined lamp is arranged at the installation region. The LED light controller solves the technical problems that the traditional LED light controller is too simple in adjusting function, cannot be controlled remotely and wastes power resource. The computer case solves the technical problem that the light change of the traditional case cannot be adjusted based on user demands and enables a computer user to be able to change the LED light based on the need per se, thereby beautifying the use environment for the user.