The object of invention is to provide solid milk with favorable solubility and enough strength and the method of manufacturing the solid milk. The solid milk of the invention has X-ray diffraction pattern of its surface area that has a main peak of 2theta= 10-15 degrees at 2theta = 10-11 degrees or at 2theta = 12-13 degrees. A method for the manufacture of solid milk comprises compressing powdered milk to obtain compressed powdered milk； humidifying the compressed powdered milk to obtain humidified compressed powdered milk； and drying the humidified compressed powdered milk to obtain the solid milk. A part of amorphous lactose at the surface of the solid milk 12 is crystallized at the steps of humidifying step and drying.本發明目的在於提供一種具有良好溶解性及高強度的固形乳及其製造方法。本發明固形乳在固形乳表面部分之由粉末X光繞射儀所得的X光繞射圖形中，其2θ=10～15°範圍的主峰(main peak)係存在於2θ=10～11°範圍或2θ=12～13°範圍。又，本發明固形乳的製造方法具有：壓縮步驟，用於將奶粉壓縮而製得固形狀奶粉壓縮物；增濕步驟，用於增濕壓縮步驟中所得的奶粉壓縮物；以及乾燥步驟，用於乾燥增濕步驟中所增濕的奶粉壓縮物，增濕步驟及乾燥步驟係使奶粉壓縮物表面部分12的非結晶乳糖的一部分結晶化。
