The objective of this thesis is to investigate ferroelectric micro- and nanotubes which have been successfully prepared by the template-wetting method. Template characterizations, mainly optical investigations of ordered porous alumina, and physical principles underlying wetting phenomena are investigated first. Micro- and nano- tubular structures, consisting of either inorganic ferroelectric oxides such as lead zirconate titanate (PZT) or barium titanate (BTO), or organic ferroelectric copolymers such as P(VDF-co-TrFE), are obtained by wetting of the porous templates.Their physical properties, particularly crystallinity and ferroelectric switchings, are explored by X-ray diffraction and Scanning force microscopy, respectively. Especially for the P(VDF-co-TrFE) copolymer nanotubes, the phase behaviors are investigated by Differential scanning calorimetry and information on ferroelectric domain structures on the tube walls is drawn by Piezoresponse force microscopy measurements. Pt nanoshell tubes are also fabricated which may serve as electrodes at both the inner and outer walls of the ferroelectric tubes. To construct simple hybrid systems from the 1D functional micro- and nano-objects for the purpose to be potentially used as building blocks to assembly functional devices, two ways are employed: either to construct multi-layer metal-oxide-metal micro- and nano(shell) tubes, or to fabricate tubes free-standing orderly from a silicon substrate on a macroscopically large scale (cm2). These results show in principle the feasibility to integrate these 1D structures as building blocks of miniaturized devices in the fields of MEMS or NEMS.