The invention relates to kelp cordyceps tablet candy for improving female kidney functions and a preparation method of the kelp cordyceps tablet candy, belonging to the technical field of drugs and healthy foods. According to the technical scheme, the kelp cordyceps tablet candy is prepared from the following raw materials in parts by weight: 5-20 parts of a kelp extract, 10-30 parts of cordyceps militaris powder, 10-30 parts of tricholoma matsutake powder, 5-20 parts of blueberry pumace powder, 5-10 parts of coix seed powder, 5-10 parts of wild jujube powder, 5-10 parts of black soya bean powder, 5-10 parts of D-mannitol, 1-10 parts of maltodextrin and 1-5 parts of magnesium stearate. According to the kelp cordyceps tablet candy, the kelp extract, the cordyceps militaris powder, and the tricholoma matsutake powder, the blueberry pumace powder, the coix seed powder, the wild jujube powder and the black soya bean powder suitable for sub-healthy female to eat are mixed together, the effect of functional nutritional ingredients is strengthened, and the kelp cordyceps tablet candy has a good effect in improving the female kidney functions, and is particularly suitable for female sub-healthy crowds. As is shown by trials, the kelp cordyceps tablet candy has a remarkable effect.