Principle objective of this article is to discuss on Various uses of Hydraulic jack. Hydraulic jack are useful devices that are utilized for heavy vehicles for example elevators, bulldozers, excavators and many others. Small hydraulic jacks will also be used in houses for door stoppers, cycles, cars, etc. These are generally convenient and valuable devices. It can be an important tool that is found to be very helpful in businesses that will involve loading along with unloading of major parts.