The invention relates to edible mushroom composite nutrition tablets which are capable of improving mushroom taste and easy to absorb and utilize and a preparation method of the edible mushroom composite nutrition tablets. The edible mushroom composite nutrition tablets are prepared from the following raw materials in parts by weight: 10-30 parts of needle mushroom powder, 10-30 parts of hericium erinaceus powder, 10-30 parts of grifola frondosa powder, 20-28 parts of a hericium erinaceus raw sugar extract, 20-28 parts of a needle mushroom raw sugar extract, 40-60 parts of haw powder, 300-350 parts of a filler, and 8-15 parts of a lubricant. The edible mushroom composite nutrition tablets are prepared through the following steps of respectively performing third-stage dehydrating and drying on the needle mushroom powder, the hericium erinaceus powder and the grifola frondosa powder for crushing, decocting the hericium erinaceus raw sugar extract and the needle mushroom raw sugar extract which are used as raw materials with boiling water twice, and performing concentration. The nutrition tablets prepared by the preparation method disclosed by the invention are moderate in sour and sweet degrees in mouth feel, are rich in nutrition, have the effect of nourishing and protecting the stomach, and are easy to take and absorb, convenient to carry and simple in technology.