The invention discloses a method for producing microcrystalline wax from Fischer-Tropsch synthesis crude wax. The method comprises the following steps of S1, carrying out metal removal treatment on Fischer-Tropsch synthesis crude wax to obtain metal-removed crude wax; S2, carrying out hydrorefining treatment on the metal-removed crude wax to obtain a hydrorefined product; and S3, carrying out separation treatment on the hydrorefining product to obtain the microcrystalline wax. The microcrystalline wax is produced from the Fischer-Tropsch synthesis crude wax as a raw material, steps of removing sulfur, nitrogen, aromatics and other impurities are not needed, a metal catalyst entrained in the Fischer-Tropsch synthesis crude wax is directly removed and then the hydrorefining treatment is carried out, and the light-wax component in the hydrorefined product is separated out to obtain the microcrystalline wax with low content of oil and fewer sulfur, nitrogen, oxygen and metal impurities components. The method disclosed by the invention provides a novel processing process for the Fischer-Tropsch synthesis crude wax, the processing cost can be reduced and the additional value of the Fischer-Tropsch synthesis crude wax can be improved.