Crankshaft is one of the main component in I.C-.Engine which converts reciprocating motion into rotation motion. The crankshaft has to bear many vibration and stresses and load of combustion in the engine. The most probable area of failure in crankshaft is near the crankpin. This paper present a survey of different types of dynamics analysis done performed using ANSYS ,FEA Software which gives a complete information about the stresses generated, stress variation ,load generation and point of failure in the engine crankshaft . The main objective of this paper is to show the research work done by different author on vibration analysis of crankshaft.