Cell reselection method, device and system

The invention discloses a cell reselection method, device and system. The method comprises obtaining multiple special cell reselection parameter sets related to capabilities of a terminal from a network side when the terminal is in a connected state, wherein the multiple special cell reselection parameter sets comprise a special cell reselection parameter set suitable for cells base station capabilities and terminal capability of which have intersections and a special cell reselection parameter set suitable for cells base station capabilities and terminal capability of which have no intersection, obtaining capability information of the cells, selecting the corresponding special cell reselection parameter set from the multiple special cell reselection parameter sets according to matching conditions of the terminal capabilities and the cell capabilities to set a cell reselection related parameter, and performing cell reselection by the terminal according to the set cell reselection related parameter.