Abstract: A computer keyboard connected with a computer for instruction and information input, the keyboard comprises the numeric keys, letter keys, function keys and symbolic keys. Only one set of numeric keys is arranged, and the set of numeric keys are arranged in the middle part of the keyboard, the letter keys are separated into two sets by the numeric keys, the two sets of letter keys lie on the left and right sides of the numeric keys respectively. The letter keys have the same order as those on a conventional keyboard, both sets of the letter keys are arranged slantwise; the function keys and symbolic keys are arranged in a left-right balanced manner. The keyboard of the invention makes a break through at the arrangement of the keys, it is easy to remember by human brain and convenient to operate, and can speed up the input speed and reduce typing error.