Since hemimorphite shows the properties of high pyroelectric coefficient and low dielectric constant, it is a potential sensor material in temperature measurement, infrared spectroscopy measurement, and catalysis fields. However, due to the isomorphism substitution in hemimorphite, the complex composition of hemimorphite limits the research on pyroelectric mechanism and the following application. Hence, researchers focus on the synthetic methods of hemimorphite with high purity. In this paper, the physical properties, synthesis methods, and remaining problems in the study of hemimorphite are reviewed based on the current research progress. The results will provide an important reference on the synthesis, the pyroelectricity mechanism, and the performance regulation of hemimorphite in the future.