The invention discloses a touch screen pinyin input keyboard, which comprises an initial area and a final area. The final area includes at least one 'a' area, 'o' area, 'e' area, 'i' area, 'u' area, 'n' area, 'g' area, 'v' area and 'er' area. When a nib is dragged to the areas, letters a, o, e, i, u, n, g, v and er are respectively input; and if the nib passes by the 'i' area or the 'u' area but the beginning point or the ending point of the dragging is not the 'i' area or the 'u' area, letters i and u are not input. The letter position relation of the final area is that the connecting line of the areas, in which the letters consisting of each compound final are positioned, is a line segment. When pinyin is input by using the touch screen pinyin input keyboard, the track of the dragging of the nib is the line segment, so that the input speed is higher.