The effect of magnetic domain boundaries displacement induced by electric field is observed in epitaxial ferrite garnet films (on substrates with the (210) crystallographic orientation). The effect is odd with respect to the electric field (the direction of wall displacement changes with the polarity of the voltage) and even with respect to the magnetization in domains. The inhomogeneous magnetoelectric interaction as a possible mechanism of the effect is proposed. DOI: 10.1134/S0021364007140093The last few years marked the great progress in the field of magnetoelectric materials [1][2][3]. The newly discovered ferroelectricity induced by spiral magnetic ordering [3][4][5][6][7] and early discovered inverse effects of electrically induced spin modulation [8-10] not only provide a deeper insight into the mechanisms of magnetoelectric coupling (the so-called inhomogeneous magnetoelectric interaction [9][10][11]) but also map out the route for electric control of micromagnetic structure in solids, the possibility predicted in 1980-ies [11] and still not realized.The best candidates for the specific character of micromagnetism in magnetoelectric materials are thin films of ferrite garnets. From the one hand they are classical object to study micromagnetism, [12][13][14][15] from the other hand they exhibit a magnetoelectric effect that is an order of magnitude greater than the corresponding effect in the classical Cr 2 O 3 magnetoelectric [16]. Electromagneto-optical effects on local areas of a ferrite-garnet film revealed that effect is vanishingly small in a homogeneously magnetized film but it increases drastically in the vicinity of domain walls. This effect was attributed to "breathing" of domain wall in electric field providing indirect evidence for the influence of electric field on micromagnetic structure [17].In this Letter we report on the direct magnetooptical observation of a new manifestation of the magnetoelectric effect, namely, the electric-field-control displacement of domain walls in ferrite garnet films, that is of interest from the fundamental point of view and opens up new possibilities for the development of multipurpose spintronic and magnetophotonic devices on a single material platform.In our experiments we used the 9.7-μm-thick epitaxial (BiLu) 3 (FeGa) 5 O 12 ferrite garnet films grown on a Gd 3 Ga 5 O 12 substrate with the (210) crystallographic orientation. The substrate thickness was about 0.5 mm. The period of the strip domain structure was 34.5μm, and the saturation magnetization was 4πMs= 53.5G. To produce a high-strength electric field in the dielectric ferrite garnet film, we used a 50μm-diameter copper wire with a pointed tip, which