Laplace transform is very powerful technique to switch operation of differential and integral calculus by operation of algebraic expression. It is useful and efficient technique to solve various scientific and engineering problems. In this paper we summarized some basic properties of Laplace and inverse Laplace transform firstly and explore some application of Laplace transform with the help of some example. We determine current in L-R circuit, displacement of particle at some particular time t and lastly, we find simultaneous solution of differential equation using Laplace transform.