Fermented walnut milk and preparation method thereof

The invention relates to the technical field of walnut milk processing, in particular to fermented walnut milk and a preparation method thereof. The fermented walnut milk provided by the invention comprises the following raw materials in parts by weight: 5-10 parts of walnut kernels; 0.41 to 0.78 part of a stabilizing agent; 2.74 to 7.5 parts of a fermentation promoting factor; 0.01 to 0.03 part of a composite strain; and 0.03 to 0.08 part of glutamine transaminase. According to the fermented walnut milk provided by the invention, the stabilizer and the fermentation promoting factor with specific components are added in the fermentation process, so that rapid fermentation can be realized under the conditions of not adding any fermentation carbon source and not partially degreasing the walnut kernels, and the product can be ensured to be uniform and stable in the normal-temperature or high-temperature storage process, and is not layered, free of bleeding and free of precipitation; the product particles are sma