Precast Hollow Core Slabs (PHCS) are widely used in civil construction, typically as floor or roof in office and residential buildings as well as parking structures. Due to fabrication restraints of PHC slabs, no shear reinforcement can be provided, and accordingly, shear resistance of PHC slabs relay solely on the shear strength of concrete itself. In some cases, the slab could be subjected to a concentrated loads or line loads caused by moving vehicles and cargos. Thus, shear failure is likely to occur at the region close to supports. Traditional remedies include choosing thicker slabs and filling the voids of PHCS, which would inevitably increase self-weight and cost. Thus, losing the advantages of PHCS. Therefore, it is imperative to develop a new high shear resistance composite PHC slabs while retaining its original merits. The objective of the present work is to explore the feasibility and effectiveness of using prefabricated thin internal Ultra-High-Performance Strain Hardening Cementitious Composite (UHP-SHCC) tubes forming the internal slab voids while working as shear reinforcement. An experimental study consisted of six full-scale single cell hollow core slabs (HCS), has been conducted to investigate the shear behavior of the innovated composite HCS. According to test results, composite HCS show much better shear properties in terms of load-carrying capacity and crack distribution compared to ordinary HCS.