Sub-micron sized liquid crystalline polymer beads containing azo groups and mesogenic groups were synthesized in order to develop 3D array showing photoinduced stimulus response properties. The size of beads was dependent on the polymerization temperature and the molar ratio of the azo and mesogenic groups. Films of the polymer beads were prepared by casting the suspension liquid on a glass plate. By irradiation of polarized light (488 nm) on the film of the polymer bead assembly, the photoisomerization effect of azo groups on the shape of the polymer beads as well as the molecular orientation of the mesogenic groups in the beads was investigated.