YBCO superconductor single crystals were grown by high temperature so-lution method and with the technique of elimination of superfluous crystalli-tes.Various materials and sizes of crucibles,different kinds of solutions andgrowth parameters such as soaking temperature,cooling rate and ambient atmo-sphere were tried. YBCO superconductor single crystals were grown by high temperature so-lution method and with the technique of elimination of superfluous crystalli-tes. Various materials and sizes of crucibles, different kinds of solutions and growth parameters such as soaking temperature, cooling rate and ambient atmo-sphere were tried.