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 2θ=10-15° at 2θ=10-11° or at 2θ=12-13°. 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.