Abstract: "World Book Day"reading promotion service channels are diverse,and its rich service participants and service content fully reflect that the library can innovate offline service methods,effectively use mobile phones and other mobile media when providing public cultural services,and face multiple service channels.Development trend of integration and cross-convergence.The article focuses on the actor organization in the reading promotion activities of"World Book Day".Based on the combing of the content of the action subject and the channel,it is found that the diversified integration of the channel benefits from the diversification and cooperation of the subject.To open up service channels in future reading promotion activities,libraries should collaborate with entities such as schools and enterprises to build a cooperative network among diverse entities and explore channel integration under the collaboration path.

Key words: actor network；service channels；World Book Day