An modified laminar crystal sodium silicate(A1-SKS-6) was synthesized by spray drying and high temperature crystallization using sodium silicate as silicon source,Al atom as inorganic source and hexadecyltrimethy ammonium bromide(CTMAB) as the structure template.The hydrothermal stability of product was at least 1 h.The synthesized material was characterized by XRD and SEM.The results indicated that shape and intensity of XRD diffraction peak at 2θtook changes,but raw materialδphase crystal form kept unchanged,and assured high Ca~(2+) and Mg~(2+) binding capacity of the products.The Ca~(2+) and Mg~(2+)binding capacity of product is up to 380 mg Ca/g and 410mg Mg/g respectively.It was found that the hole of product became smaller and appeared rod structure based on SEM.The hydrothermal stability was increased due to the pillaring of Al atom. An modified laminar crystal sodium silicate (A1-SKS-6) was synthesized by spray drying and high temperature crystallization using sodium silicate as silicon source, Al atom as inorganic source and hexadecyltrimethy ammonium bromide (CTMAB) as the structure template. The hydrothermal stability of product was at least 1 h. The synthesized material was characterized by XRD and SEM. The results indicated that shape and intensity of XRD diffraction peak at 2θ to ok changes, but raw material δphase crystal form kept unchanged, and assured high Ca ~ (2+) and Mg 2+ binding capacity of the products.The Ca 2+ and Mg 2+ binding capacity of product is up to 380 mg Ca / g and 410 mg Mg / g respectively. It was found that the hole of product became smaller and the rod structure based on SEM. hydrostatic stability was increased due to the pillaring of Al atom.