Abstract: The drying of macadamia nuts will result in gaps between the shell and the kernel. During the process of cracking the shell, it is easy to cause the fragmentation of the kernel, which affects the quality of the product and reduces the whole kernel rate of the kernel. Macadamia shell cracking technology is an important link in the deep processing of its products. This article mainly summarizes and analyzes the development status of macadamia shell cracking technology, summarizes the problems existing in different macadamia shell cracking technologies, and proposes several development countermeasures, which are expected to provide help for the progress of country’s macadamia processing technology and the development of the industry.