The invention provides a nougat and a preparation method thereof. The nougat includes the following components: coconut milk, glucose syrup, peanuts, cream, white sugar, trehalose, protein, edible salt, fine powder of shiitake mushrooms, white fungus Fine powder, kelp fine powder, brown algae fine powder, centipede algae fine powder, palmate dulse fine powder, the ingredients contain a variety of nutrients and flavor substances, and the preparation method of the nougat is carried out on the basis of traditional techniques Improvements have been made, such as setting a temperature gradient cooking process, secondary flushing, and at the same time, through the blending effect between components, it is ensured that the texture, color, taste and flavor of the product after adding other flavors and nutrients are not only It is not weakened, but has better quality than prior art products.