Mobile phone is one of the greatest advance in science. Mobile phone is a small wireless device. The mobile phone can be used to communicate over long distance without wires. It can be moved easily and quickly .The first mobile phone networks were created in the late 1970s in Japan. At present the popularity of the mobile phone is increasing. Now a day the mobile phone is not only a mere phone but it is a lot in itself. Through mobile phone ,we can send massages ,play games, solve many problem in our life. Mobile phone has completely changed the concept of telephone system. It become a fashion with the young generation. The mobile phone has become necessary for today’s world. But it has some bad effects. The new generation is misusing it by distorting its uses. Scientists have recently discovered that mobile phone can cause cancer to the users. But in spite of all these disadvantages, we can say that mobile phone is an important device in our daily life .