The invention discloses a method and a terminal for reselecting a cell, belonging to the field of mobile communication. The method comprises the following steps: measuring adjacent cells by the terminal in a current macro cell according to a measuring condition; setting cell reselecting parameters of the measured adjacent cells according to the measured signal quality information of the adjacent cells; and selecting the cells with higher immigration levels than the macro cell from the measured adjacent cells according to the set cell reselecting parameters. The terminal comprises a measuring module, a setting module and a selecting module. The invention can realize the immigration of the cells with high immigration levels by the terminal and reduce interferences after the immigration of the terminal. Compared with the prior art, the invention reduces the mutual interferences between the terminal and an HNB cell.