This study investigated the seismic behavior of hybrid precast utility tunnel composed of double-skin sidewalls, cast-in-place (CIP) bottom slab and composite top slab base on pseudo-static tests. Two full-scale utility tunnels, including one precast specimen and one corresponding CIP specimen, were constructed and critical parameters related to failure mode, hysteretic response, load-carrying capacity, deformation performance, and stiffness degradation were investigated. Results demonstrated that both specimens exhibited flexural failure as their failure patterns. Plastic hinges initially appeared at the haunch sections of the sidewalls for both specimens, followed by their formation at the end of the top slab. Both specimens exhibited a stable and plump hysteretic response. The energy dissipation capacity of precast specimen was comparable to that of CIP specimen at each displacement level, as was the stiffness degradation. Additionally, the precast specimen and CIP specimen showed comparable load-carrying capacity, which was 305.90 kN and 315.10 kN respectively. The displacement ductility of precast specimen was approximately equivalent to the CIP specimen, which was 2.70 and 2.63 with a difference of less than 3%. These findings provide validation for designing and analyzing the hybrid precast utility tunnel using identical principles and models as applied in CIP structures. Furthermore, an evaluation based on the criteria presented in NEHRP-2003 indicated that the precast specimen exhibited satisfactory seismic performance.