The invention relates to a keyboard which comprises keys, vibrators and a processor. The vibrators are adjacent to the keys respectively and emit feedback vibration to the keys. When the key is in a pressed state, the processor outputs at least one strong acceleration pulse to the vibration so that the vibration acceleration of the key reaches a predetermined percentage of the predetermined acceleration of the key, the processor also outputs a slow acceleration pulse so that the vibration acceleration of the key reaches the predetermined acceleration of the key, and the work period of each strong acceleration pulse is greater that of each slow acceleration pulse. According to the keyboard, the processor can send different types of pulses to the vibration according to different using situations so that the keys vibrate, and real-time accurate and comfortable feedback vibration is provided for users under the condition that the thickness of the keyboard is not increased.