To provide a method for producing a dialkyl peroxide in high selectivity and yield by reacting an alcohol-based compound with an organic hydroperoxide compound by using a zeolite solid acid as a catalyst.

The method for producing the dialkyl peroxide by reacting the alcohol-based compound with an organic hydroperoxide compound comprises carrying out the reaction in the presence of water. In the method, the zeolite solid acid catalyst is preferably a β type zeolite.