Labyrinth throttle decompression core package for adjusting valve

The utility model discloses a labyrinth throttle decompression core package for an adjusting valve, which comprises a lower compression sheet, a middle layer component and an upper compression sheet, wherein the middle layer component is formed by a plurality of labyrinth discs through overlapping, and each labyrinth disc is a disc with a plurality of labyrinth structures inside and used for throttling fluid. The utility model integrates a plurality of advantages, such as stable decompression, avoidance of cavitation, reduction of pipeline vibration, and can efficiently finish works including throttling fluid, resisting cavitation, reducing vibration and the like of the adjusting valve; and the finer adjusting performance and the excellent sensitivity can save more energy for a machine set of a power plant, and efficiently improve the operation safety and the service life of the machine set at the same time.