Provided are a frequency domain resource determining method, a node and a storage medium, and the method includes the following: A first node acquires first carrier resource configuration information sent by a control node; the first node determines a first reference carrier of a cell of a distributed unit (DU) of the first node according to the first carrier resource configuration information; and the first node determines at least one frequency domain resource set of the cell of the DU of the first node based on the first reference carrier, where the first reference carrier includes a first starting resource block and N resource blocks starting from the first starting resource block, and N is configured in the first carrier resource configuration information or predefined.