The invention discloses a state detection method of a switch section of an urban rail adopting maglev automatic train control (MATC). The state detection method comprises two steps of switch section acquisition and processing and train tracking processing. Due to a track switch beam of the urban rail adopting MATC is not provided with an axle-counting magnet head, track switches of track crossovers are not all positioned, and the problem that normal unlocking by three-point check cannot be met. In the switch section acquisition and processing step, combination processing is carried out on theswitch sections of the track crossovers, when the track switches in the track crossovers are not all positioned, the states of the switch sections in the track crossovers are enabled to be consistent;and in the train tracking processing step, if the track switches in the track crossovers are in the reverse position, the switch sections in the track crossovers are combined into one section, by looking for rear sections and front sections of the section, so that three-point check conditions are met to solve the problem that an approach road section at which the track switches are arranged in the reverse position cannot be unlocked normally, and it is ensured that trains safely and orderly pass through the track switches.