The invention discloses piezoelectric ceramic as well as a preparation method and application thereof, and mainly relates to the field of piezoelectric ceramic. According to the preparation method of the piezoelectric ceramic provided by the embodiment of the invention, K0. 48Na0. 52Nb0. 949 Li0. 001Sb0. 05O3, Bi0. 5( K0. 15Na0. 85) 0. 5Zr0. 15Hf0. 85O3 and (K0. 15Na0. 85) 5Cu1. 5Ta5O19 are reasonably configured, so that in the preparation process of the KNNLS-BKNZH-x% wtKNCTO piezoelectric ceramic provided by the invention, the problem that the piezoelectric property and the mechanical property of the piezoelectric ceramic are difficult to balance can be effectively solved, and the piezoelectric property and the mechanical property of the piezoelectric ceramic can be effectively balanced while the relatively high piezoelectric property is ensured. The technical effects of improving the density, the process stability and the mechanical quality factor of the piezoelectric ceramic and reducing dielectric loss are achieved, so that the process mass production stability and the product application effect are good. Therefore, the piezoelectric ceramic and the preparation method thereof provided by the embodiment of the invention have important industrial mass production application value.

一种压电陶瓷及其制备方法和应用，其主要涉及压电陶瓷领域。本发明实施例提供的压电陶瓷制备方法通过将K0.48Na0.52Nb0.949Li0.001Sb0.05O3、Bi0.5(K0.15Na0.85)0.5Zr0.15Hf0.85O3及(K0.15Na0.85)5Cu1.5Ta5O19进行合理的配置，使得本申请所提供的KNNLS‑BKNZH‑x％wtKNCTO压电陶瓷在制备过程中，可以有效解决压电陶瓷压电性能和机械性能难以平衡的难题，从而在保证较高压电性能的同时，实现提高压电陶瓷致密度、工艺稳定性和机械品质因数，以及降低介电损耗的技术效果，进而使得工艺量产稳定性和产品应用效果俱佳。因此，本发明实施例提供的压电陶瓷及其制备方法具有重要的工业量产应用价值。