The invention relates to an embedded brake plate of a high-speed rapier loom. The brake plate is characterized in that the brake plate comprises a slow clutch drive module, a weft clutch drive module, a main clutch drive module, a brake control module, a brake release module and a relay module used for expanding an alternating-current contactor; functional pins of the slow clutch driving module, the weft clutch driving module, the main clutch driving module, the brake control module and the brake release module are all directly welded to a bottom plate, and the relay module is fixed to the bottom plate through a base; the weft clutch drive module, the main clutch driving module and the brake control module are identical with the slow clutch drive module in circuit structure; control voltage input ends of the weft clutch drive module, the main clutch drive module and the brake control module are PCluchH, MCluchH and BrakeH respectively.