A cell reselection method, wherein the method comprises: selecting, by a terminal, at least one piece of target prior frequency information from a plurality of pieces of prior frequency information, wherein the terminal selects the at least one piece of target prior frequency information from the plurality of pieces of prior frequency information based on whether a currently registered public land mobile network belongs to a public land mobile network co-constructed and shared by operators and/or whether the terminal can roam to another public land mobile network, so that the terminal selects the target prior frequency information from prior frequency information of the public land mobile network co-constructed and shared by operators and/or prior frequency information of the another public land mobile network to which the terminal can roam, wherein the prior frequency information is frequency information of a cell in a public land mobile network of an operator on which the terminal successfully camps previously; performing, by the terminal, measurement and reselection evaluation based on the target prior frequency information; and performing, by the terminal, cell reselection based on a reselection evaluation result, wherein the selecting, by a terminal, at least one piece of target prior frequency information from a plurality of pieces of prior frequency information comprises: selecting the at least one piece of target prior frequency information from the plurality of pieces of prior frequency information based on a use scenario of the terminal, wherein the selecting the at least one piece of target prior frequency information from the plurality of pieces of prior frequency information based on a use scenario of the terminal comprises: selecting, from the plurality of pieces of prior frequency information based on the use scenario of the terminal, target prior frequency information of an area that is the same as an area in which the terminal is located. selecting, by a terminal, at least one piece of target prior frequency information from a plurality of pieces of prior frequency information, wherein the terminal selects the at least one piece of target prior frequency information from the plurality of pieces of prior frequency information based on whether a currently registered public land mobile network belongs to a public land mobile network co-constructed and shared by operators and/or whether the terminal can roam to another public land mobile network, so that the terminal selects the target prior frequency information from prior frequency information of the public land mobile network co-constructed and shared by operators and/or prior frequency information of the another public land mobile network to which the terminal can roam, wherein the prior frequency information is frequency information of a cell in a public land mobile network of an operator on which the terminal successfully camps previously; performing, by the terminal, measurement and reselection evaluation based on the target prior frequency information; and performing, by the terminal, cell reselection based on a reselection evaluation result, wherein the selecting, by a terminal, at least one piece of target prior frequency information from a plurality of pieces of prior frequency information comprises: selecting the at least one piece of target prior frequency information from the plurality of pieces of prior frequency information based on a use scenario of the terminal, wherein the selecting the at least one piece of target prior frequency information from the plurality of pieces of prior frequency information based on a use scenario of the terminal comprises: selecting, from the plurality of pieces of prior frequency information based on the use scenario of the terminal, target prior frequency information of an area that is the same as an area in which the terminal is located.