The invention discloses an AP access detection method and an AP access detection device, used for solving the problems that at present, during the process that a terminal is connected to an AP, the waste of system resources occurs and the network communication quality of the terminal is poor. The method comprises the steps that during the process that a terminal is connected to an AP, a user can query the AP performance parameters of the AP currently needing to be connected via the terminal in advance, and determines the network communication quality of the AP at the current time via the AP performance parameters. By using the AP access detection method, before being connected to the AP, the terminal learns the AP performance parameters of the AP needing to be connected in advance, and when the AP performance of the AP needing to be connected is not good, the terminal can be not connected to the AP, thus the energy consumption of the terminal is reduced, and the waste of system resources is avoided; furthermore, when learning that the currently connected AP is not good in performance, the terminal can be connected to the AP with better performance, and thereby the network communication quality is improved.