The invention which relates to a technology for producing a wine through fermenting Laiyang pears belongs to the technical field of wine brewing technologies. The technology comprises the following steps: 1, cleaning the Laiyang pears; 2, fragmenting and beating the Laiyang pears; 3, sending a slurry obtained after the fragmentation to an enzymatic hydrolysis tank, and carrying out enzymatic hydrolysis; 4, filtering by a filter press; 5, fermenting by adding yeasts; 6, reladling to separate out wine lees; 7, carrying out colloid deposition processing; 8, filtering after the clarification; 9, ageing in an ageing tank; 10, filtering after the ageing; 11, carrying out balance blending; 12, refrigerating, and filtering; 13, storing for a short period, 14, blending; 15, sterilize-filtering; and 16, filling. According to the invention, a biological technology is utilized to brew the full-juice fermentation Laiyang pear wine, the production technology is scientific and reasonable, and the prepared Laiyang pear wine which is yellow green has the characteristics of moderate acidity, long aftertaste after drinking, strong typicality, no pegging on teeth and the like, and is a unique high-grade fruit wine, so a new approach for the exploitation of the Laiyang pears into high-end products is provided in the invention.