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This invention discloses a honeycomb hydrolysis catalyst suitable for coal gas desulfurization and its preparation method, belonging to the field of catalyst technology. The preparation method includes the following steps: (a) using TiO2, SiO2, silica-alumina molecular sieve, titanium-silicon molecular sieve (types 0-4) and Al2O3 as carriers, adding organic binders, molding aids, and water to mix together to obtain a slurry; (b) after aging and filtration, the mixed slurry is extruded into shape through a mold, then dried and calcined to prepare honeycomb catalysts with different pore numbers, wall thicknesses, and external dimensions. This honeycomb catalyst is used as the finished catalyst, or the honeycomb catalyst is further loaded with alkali metals, aged, dried, and calcined a second time to obtain the final catalyst, which is used as the finished catalyst. The catalyst of this invention has the characteristics of high porosity, low bed pressure drop, allowing operation at high space velocities, large single-tower coal gas processing capacity, long service life, and convenient loading.