The invention relates to an esterification deacidification process for high acid number rice bran oil, and the process can well solve the problem of a low refining rate. The esterification deacidification process for high acid number rice bran oil comprises grease pretreatment, namely two steps of degumming and decolorizing. A decolorized substance is obtained after the decolorizing, and then esterification deacidification is carried out. The concrete operating method comprises the following steps of: adding glycerin after the decolorized substance is stirred and heated at a vacuum degree of 0.09 MPa; adding a catalyst of zinc oxide or zinc to carry out a catalytic reaction to generate low acid number rice bran oil with an acid number of 5-7mgKOH/g. The zinc oxide or zinc which is taken as the catalyst of the esterification deacidification of the high acid number bran oil can effectively boost the esterification reaction and rapidly reduce the acid number; simultaneously the process overcomes the problems of the low refining rate lying in a traditional refining method and a great deal of sewage produced by a chemical alkali refining method; the zinc oxide or zinc has a low price, thereby reducing production cost; compared with other chemical esterification catalysts, the zinc oxide or zinc has a very low toxity, thereby being very suitable for the production of edible grease.