The invention discloses an anti-conflict low-power-consumption method used in a blueberry tracing system and based on RFID. A generated conflict instruction is intercepted again through a label distribution random waiting state, and the time T4 accounting for 5-15% of T1 is adopted for intercepting once again; after the intercepting time is changed, in the next-time reading and writing process, all labels are out of sync, the label conflict can be solved effectively and fast, the labels can be normally read, without frequent operation, interception is carried out through a dormant state for the interval time T6 lager than or equal to five times of T1, power consumption of the labels can be reduced, the problem that in the prior art, too many labels are read to lead to the conflict and large energy consumption is effectively solved, and the method is simple and reliable; compared with a traditional RFID reader-writer and an active electronic label original model, the method is higher in environmental adaptability and has more advantages in function and use convenience.