The invention discloses a method for interconnecting readers in internet of things and a reader, which belongs to the field of internet. The method comprises the steps of: receiving beacon messag broadcasted by other readers in the internet of things, wherein the beacon messages contain at least the identifiers and certificates of the other readers; verifying whether the other readers are legal according to the certificated in the beacon messaged; and adding the information of the other readers to a neighbor list if the certificates are legal. In the method of the invention, other readers in the internet of things are verified, and the legal readers are added to the neighbor list when successfully authenticated, and therefore the interconnection of readers is realized, and the authority of the interconnecting mode among the readers is controlled. In addition, types the data of which can be retransmitted are verified among the neighbors by obtaining the retransmitting strategy of heterogeneous readers and retransmitting the data according to the retransmitting strategy of different readers, therefore, the network overhead is reduced, the deployment cost is lowered, and the efficiency of retransmitting data is improved.