The present disclosure relates to a self-healing microneedle array and a magnetic microneedle interface using same. Specifically, a magnetic microneedle array may be provided, in which magnetic nanoparticles are included in the microneedle array and thus heat is generated by an alternating magnetic field applied from the outside, whereby the microneedles are physically softened or deformed in shape due to the heat generated at the tip portion. In addition, a bio-microneedle bioelectrode having electrical conductivity may be provided by coating the surface of the microneedle array with a conductive polymer, thereby enabling stable transmission of electrochemical signals.
