This review article discusses the application of high-performance cementitious composites (ECC and ultra-high-performance concrete, UHPC) in composite bridge deck (CBD) systems, including orthotropic steel bridge deck (OSBD), steel-concrete, steel-UHPC, and steel-ECC CBDs. The focus is on the flexural behavior, bearing capacity, fatigue behavior, and crack resistance of these systems under different loading conditions. The article highlights the advantages of using ECC and UHPC in enhancing the stiffness, durability, and crack resistance of CBDs. It also explores the use of various shear connectors, such as studs, perforated rib (PBL), and modified clothoid (MCL) shape connectors, and their impact on the mechanical performance of the structures. Additionally, the article introduces a new approach to assembling CBDs using pre-fabricated steel parts, which reduces the welding area and simplifies the fabrication process. The review provides a comprehensive overview of the current research and developments in the field, offering insights into the design and performance of advanced CBD systems.This review article discusses the application of high-performance cementitious composites (ECC and ultra-high-performance concrete, UHPC) in composite bridge deck (CBD) systems, including orthotropic steel bridge deck (OSBD), steel-concrete, steel-UHPC, and steel-ECC CBDs. The focus is on the flexural behavior, bearing capacity, fatigue behavior, and crack resistance of these systems under different loading conditions. The article highlights the advantages of using ECC and UHPC in enhancing the stiffness, durability, and crack resistance of CBDs. It also explores the use of various shear connectors, such as studs, perforated rib (PBL), and modified clothoid (MCL) shape connectors, and their impact on the mechanical performance of the structures. Additionally, the article introduces a new approach to assembling CBDs using pre-fabricated steel parts, which reduces the welding area and simplifies the fabrication process. The review provides a comprehensive overview of the current research and developments in the field, offering insights into the design and performance of advanced CBD systems.