The present disclosure relates to the technical field of liquid crystal display, and particularly, relates to a device for fixing a quantum strip of a display. The device includes: a first support extending along a first direction, which first support is capable of clamping the long ineffective part of the quantum strip and being fixedly connected to the shell of the display, and which first support is provided with a connecting portion on one end in the first direction; a second support extending along the first direction, which second support is capable of clamping the effective part of the quantum strip and being fixedly connected to the shell of the display, and which second support is provided with connecting portions on both ends in the first direction, wherein the first support is connected to the second support on at least one end of the second support. The device according to the present disclosure can be flexibly spliced based on different numbers of the quantum strips, and a plurality of backlight incidences, including single-long incidence, double-long incidence, single-short incidence and double-short incidence and the like, can be achieved simultaneously.