The invention discloses solidification type aloe yoghourt. The raw materials of the solidification type aloe yoghourt adopting the formula comprise the following components in parts by weight of 10-20parts of aloe, 10-25 parts of nonfat dry milk, 4-6 parts of granulated sugar, 2-5 parts of water soluble dietary fibers, 0.001-0.01 part of casoik flour, 0.001-0.01 part of transglutaminase and 2-5 parts of a composite fermenting agent. The casoik flour and the transglutaminase are used for replacing a stabilizing agent which is added, through controlling the activity of alpha-casein substrates in the casoik flour, and through catalytic conversion of the transglutaminase, the solidification property of the yoghourt is effectively improved, the nutrient value of the nonfat dry milk and the nutrient value of the aloe are reserved, the mouth feel of milk products is improved, and the tissue state is stable; and besides, the water soluble dietary fibers are added, so that the prepared yoghourt is healthier. The invention further discloses a preparation method of the aloe yoghourt. The preparation method comprises the steps of preparing materials, pretreating the aloe, performing sterilization, performing blending, performing homogenizing, performing sterilization, performing cooling, performing inoculation, performing fermentation, performing cold storage and performing mixing. In addition, compared with conventional solidification type yoghourt, the solidification type aloe yoghourt disclosed by the invention has better solidification property and smoothness, and whey separationis reduced.