The disclosure relates to a communication technique for convergence between an IoT technology and a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system thereof. The disclosure may apply to intelligence services on the basis of a 5G communication technology and an IoT-related technology. The disclosure may apply to a technology of managing connection between a terminal supporting multiple SIMs and multiple activated telecom bundles, the terminal including a smart secure platform mounted therein. The method comprises enabling a first telecom bundle of a plurality of telecom bundles of the smart secure platform, generating a first pipe for a communication between the activated first commutation bundle and a modem of the terminal, and mapping the generated first pipe to a first SIM port of a plurality of SIM ports of the modem, based on an identifier of the first SIM port.