In the present study the author desires to identify the negative factors of tourism that hinders the industry seriously. Identification is exclusively based on opinion of sample tourist vis-à-vis opinion of local people. A methodology has been framed to determine the major and minor negative factors of tourism out of a number of negative factors. The identified major negative factors of West Bengal tourism are Growth of unscientific massage parlors, Exploitation on tourists, over pricing, commercialization of country’s culture/customs and water pollution. Other four identified factors viz. Littering, Pick pocketing, Theft and Female prostitution are also affect tourism moderately. The author advised that control measure should be taken to arrest the growth of these negative factors so that they can be nipped in the bud.