Metal sulfides (MSs) nanomaterials have become increasingly popular due to their extensive range of applications in various fields, such as medicine, biology, environmental sciences, and energy production/utilization. The light absorption, optical characteristics, high specific capacitance, and catalytic/photocatalytic capability of MSs nanomaterials make them ideal for these applications. In medicine, MSs nanomaterials can be used for enhanced imaging, drug delivery, and cancer therapy due to their light absorption and optical characteristics. These nanomaterials have also been used in biosensors, biosynthesis, and bio-imaging. In environmental sciences, MSs nanomaterials have been used for water treatment, pollutant detection, and remediation due to their high specific capacitance. In energy production/utilization, MSs nanomaterials have been explored for hydrogen production, solar energy conversion, and catalytic/photocatalytic conversion due to their catalytic/photocatalytic capability. Overall, MSs nanomaterials are prospective candidates for multidimensional applications in medicine, biology, environmental sciences, and energy production/utilization due to their light absorption, optical characteristics, high specific capacitance, and catalytic/photocatalytic capability. Their potential for a multitude of applications makes MSs nanomaterials an attractive option for researchers and scientists. In this review we discussed on types of metal sulfide, preparation of metal sulfide and application of metal sulfide.