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Two types of Bending and expanding motion actuators which are composed of multi-layered PZT unimorph cells have been developed. Each cell's electrode is divided into three sectors and the facing sectors are connected to one another. Multi-directional bending is realized by controlling the driving voltage of each sector. The first (3&3) type /spl phi/ 12 mm actuator is 12 mm in diameter, 20 mm in length and 6.4g in weight. The bending angle was 2.2 degrees, and the expansion displacement was 700 /spl mu/m with 150 V. The second (3&1) type /spl phi/ 8 mm actuator is 8mm in diameter, 9.2 mm in length and 1.2g in weight. The bending angle was approximately 4.5 degrees, and the expansion displacement was 610 /spl mu/m with 100 V.