The invention relates to the technical field of material corrosion testing, and discloses a corrosion resistance testing method for a neutron adsorption material. The method comprises the following steps that: preparing the sample of a neutron adsorption material to be tested; carrying out preliminary treatment on the sample, and carrying out weighing and size measurement on the sample; arranginga test tool, and fixing the sample on the test tool, wherein the test tool can simulate the galvanic corrosion and crevice corrosion service environment of the sample; preparing a corrosion medium, wherein the corrosion medium is boric acid aqueous solution; putting the test tool fixed with the sample in the corrosion medium to carry out corrosion testing; and after the corrosion testing is finished, carrying out aftertreatment on the sample, and carrying out weighing and size measurement on the sample, wherein test tool arrangement and corrosion medium preparation are not in a particular order. By use of the above method, the service condition of the neutron adsorption material can be simulated, various types of corrosion are observed, and therefore, the corrosion performance of the neutron adsorption material under the service condition can be comprehensively evaluated.