This project focuses on leveraging acoustic metamaterials, specifically metalenses, to achieve super-resolution ultrasonic imaging for biomedical applications. Tissue-mimicking phantoms were fabricated, embedding sub-wavelength discontinuities to simulate microscopic biological features. Structured channel metamaterials were employed, and the configuration successfully achieved imaging resolution down to one-third of the operating wavelength, surpassing the Rayleigh diffraction limit. The findings demonstrate significant potential for non-invasive, high-resolution medical diagnostics and advanced biomedical imaging research.