Industry 4.0 is a term that defines the concept of the "smart factory" along with the growth of Industrial technologies (i.e)Industrial internet of things(IIoT) via automation, interconnectivity, Machine Learning, real-time data processing, and digitization. It defines how our society and industries can grow up with the new kind of technologies to enable efficient data exchange, faster, flexible, efficient, smart manufacturing methodology to meet the mass production of high-quality goods with reduced Costs. Check out how blockchain, the new technology intruder could play a lead role in the fourth industrial revolution, industry 4.0.