The invention relates to the technical field of oil field oil production engineering and belongs to an intelligent injection allocation instrument of a water injection well which mainly solves the problems that the existing layering water injection equipment cannot carry out continuous monitoring to water injection state of all layers under the ground in the construction process, and the test working capacity is high; the intelligent injection allocation instrument of the water injection well is composed of a cable head 1, an electrical connector 2, a non-contact electric energy conversion system 3, a wireless transceiving module 4 and a locating mechanism 5, wherein, the electrical connector 2 is connected with the non-contact electric energy conversion system 3 in a locating way, and the non-contact electric energy conversion system 3 is in threaded connection with the locating mechanism 5 ; the instrument adopts mechanical-electrical integration design, and has the advantages of shortening test period, reducing work load and improving water-injection qualification rate and the like.