Protonic ceramic electrochemical cells have attracted extensive interest as energy conversion and storage devices working at intermediate temperatures (400-600℃). Tubular protonic ceramic electrochemical cells (T-PCECs) exhibit plenty of merits over the planar one, such as less sealing requirement, rapid start-up/shut-down, better thermal cycle stability, enhanced thermomechanical properties, and good thermal shock resistance. Additive manufacturing can offer new possibilities of flexible, precise, and repeatable fabrication of scalable T-PCECs, which can pave the way for the wide applications of T-PCECs. In this study, we manufactured large-scale (>10 cm2) T-PCECs (with BaZr0.7Ce0.2Y0.1O3-δ (BZCY72), BZCY72-NiO, BaCo0.4Fe0.4Zr0.1Y0.1O3-δ as the electrolyte, fuel electrode, and oxygen electrode, respectively) by a laser 3D printing technique that integrated microextrusion-based 3D printing and laser processing (laser drying, polishing, and cutting). High maximum power densities (>400 mW/cm2) and low total polarization resistances (<0.1 Ω cm2) were achieved at 600℃ for fuel cell operation. Besides, excellent thermal cycling stability and outstanding long-term stability were also demonstrated. The high-performance, durable, and mechanically robust T-PCECs indicate that laser 3D printing is a promising manufacturing technique providing the great potential of practical applications of T-PCEC.