Rotational prisms or reflectors are used for conventional optical scanners. Their disadvantages are large size, low scanning speed and high power consumption. In the paper a microoptical scanner based on the integration of piezoelectrical driver and microlens arrays is described. The microlens arrays consist of a convex microlens array and a cocave microlens array with 256×256 elements respectively. Each element dimension is 50×50 μm 2 . The scanner is driven by a piezoelectrical(PZT) crystal. A PA90 amplifier is controlled by an input signal produced by a single chip computer. The amplifier supplies a high voltage pulse signal to driving the PZT. The scanning frequency can reach 200Hz to 300Hz and the scanner's size is a few cubic centimeters.