The invention relates to a novel crystal of sacubitril valsartan sodium as well as a preparation method and application thereof. According to the novel crystal, the hygroscopicity of an existing crystal of the sacubitril valsartan sodium is greatly improved, the fluidity of a pharmaceutical preparation is good, the product purity is high and can reach 99.5% or above, tablets with three specifications can be prepared by adopting a direct tabletting process, the process is simple, the production time can be greatly shortened, the cost is lowered, and the novel crystal is suitable for preparing various stable pharmaceutical preparations.