The experiential economy is an important component of service market. Given that diffusion of experiential service has distinct spatial influences，this study establishes a spatial spillover model of service contagion that incorporates the infectiveness and susceptibility between regions. In this way，the model precisely separates the spatial effects of focal region and cross-regional diffusion. Based on the mobile data of visitors to Shanghai Disneyland，this paper empirically measures the spatial diffusion effect of Disney，including the clout and susceptibility of the service diffusion at provincial and regional levels. The results indicate that diffusion of Disney service at the focal region comes from the direct influence of local tourists ( 38. 6% ) ，the spillover effect from others( 52. 4% ) ，the temporal effect ( 8. 7% ) and media coverage effect ( 0. 3% ) . The study further reveals the asymmetry of inter-regional spatial impact in the service diffusion，and provides important managerial implications on location-based service promotion.