Sentiment analysis manages distinguishing and classifying opinions or sentiments communicated in source message. Social networking sites like twitter have a large number of people share their contemplations step by step as tweets. As tweet is trademark short and fundamental method of articulation. The Sentiment Analysis sees as area of message data in Machine Learning. The exploration of sentiment analysis of Twitter data can be acted in various perspectives. This paper shows sentiment analysis types and methods used to perform extraction of sentiment from tweets. In this paper surveyed different Machine Learning techniques and approaches of sentiment analysis having twitter as a data.