Provided are a yoghurt material for making a homemade yoghurt at home and a yoghurt making method using the yoghurt material. The powdery yoghurt material comprises: a milk powder and a lactic acid bacterium fermented at an ordinary temperature, wherein the powdery yoghurt material is converted into a yoghurt when the material to which water was added is fermented. The powdery yoghurt material further comprises a casein powder, an oligosaccharide and a propionic acid bacterium. The milk powder includes a whey as a main ingredient. Additionally, provided is a yoghurt making method using such a powdery yoghurt material.
