IoT devices and applications are growing rapidly as a result of the advancement of IoT technology. In the case of smart hotels with many IoT devices, the majority of the data generated by those devices contains the private information of users, which is susceptible to being changed and leaked during transmission and storage. To overcome it, this paper proposes a blockchain-IoT based Framework for securing smart hotels(BI-FERH) to enhance the security of hotel information systems. The high performance BI-FERH architecture takes advantage of real-time data transmission capabilities offered by IoT devices. Sensitive data generated by IoT devices is protected in BI-FERH, enhancing tamper-proof capabilities. The results of the experiment demonstrate that BI-FERH can increase the security of smart hotel systems while preserving operational efficacy. An innovative and safe solution for the information management system of smart hotels is offered by the BI-FERH framework.