The present invention relates to a smart terminal fuzzing apparatus and method using a multi-node structure. The smart terminal fuzzing apparatus includes a fuzzing command management unit for managing fuzzing instructions corresponding to performance of fuzzing. An algorithm management unit creates fuzzing commands based on the fuzzing instructions, and distributes the fuzzing commands to a plurality of fuzzing nodes connected to a fuzzing client depending on a distribution algorithm. A fuzzing client management unit performs control such that fuzzing is performed by the plurality of fuzzing nodes in compliance with the fuzzing commands through the fuzzing client. A log management unit receives results of performance of fuzzing from the plurality of fuzzing nodes and manages the fuzzing results.