Single crystal of solid solution magnesium zinc borophosphate was first grown by the Czochralski method. The crystal obtained shows thick plate-like morphology with sizes Lip to 20 mm x 15 mm x 7 mm. The crystal is transparent in the wavelength range of 200-2500 nm, with the UV absorption edge at about 200 nm. The powder second harmonic generation effect of the crystal is similar to that of KH2PO4.