To provide a method for producing a wood fuel in which a wood waste material having its origin in construction waste materials such as wood biomass raw material can be used as a fuel in steps simplified as much as possible and to provide a method for using the wood fuel and to provide an apparatus for producing the wood fuel.

The method for producing the wood fuel by carrying out pulverizing treatment of a wood waste material W comprises a crushing step for crushing the wood waste material W so the maximum length becomes ≤60 mm by using a crusher 2, a crushed material-classifying step for obtaining a crushed material of wood waste material having ≤60 mm maximum length by classifying the crushed material, obtained in the crushing step, by using a classifying machine 4, and finely crushing and classifying step for obtaining finely crushed material containing 100% finely crushed material having ≤5 mm particle diameter and containing ≥60% finely crushed material having ≤2 mm particle diameter by finely crushing the crushed material by using a finely pulverizing and classifying machine 9 and simultaneously classifying the resultant finely crushed material.