The invention relates to the technical field of automatic detection, in particular to a self-detection carrier roller of a belt conveyer based on multi-sensor technology. The self-detection carrier roller can realize automatic failure detection in the running process of the belt conveyer. The carrier roller solves the problem that workers are inconvenient to check the failure of the prior carrierroller of the belt conveyer manually. The self-detection carrier roller of the belt conveyer based on the multi-sensor technology comprises a carrier roller shaft, a carrier roller body which is sheathed on the carrier roller shaft, a sensor and an intellectual failure detection alarm circuit which is connected with an output port of a sensor used for detecting the state of the carrier roller, wherein both ends of the carrier roller body are rotatably matched with the carrier roller shaft respectively by a first bearing and a second bearing. The self-detection carrier roller has the advantages of simple and reasonable structure, easy realization and high working reliability, can realize automatic failure detection and failure alarm, and the labor intensity of working personnel is lightened. The structure of the carrier roller can be applied to automatically monitoring and alarming the failure of other rotating equipment.