[en] In order to investigate the behavior of spin polarization at magnetic surfaces, spin-polarized metastable-atom deexcitation spectroscopy with slow He (2³S₁) beams has been utilized as one of the most surface-sensitive spin analysis tools. Recent progress in spin research has made another demand on microscopic images that clarify the spin polarization due to fine structures. Technologies have been developed for He (2³ S₁) focus and spin polarization using a sextupole magnet and for spin flip, which have enabled us to obtain two-dimensional scanning images of surface spin. The present performance is high enough to accomplish precise spin measurement of wedge samples. It is also concluded that the spatial resolution can be greatly improved by adopting an electron emission microscope. (author)