Due to its convenient construction and good integrity,in recent years,composite slab has been rapidly developed and applied in China.Carrying out research on composite slab can further optimize the related properties of composite slab,broaden the scope of application of composite slab,and promote composite slab's use in prefabricated building,which is conducive to accelerating the development of building industrialization.According to the base plates of different structural form,composite slab are divided into flat slab,steel bur truss,prefabricated ribbed slab,hollow base slab,and two-way multi-ribbed sandwich composite slab,and the research progress of different types of composite slab was comprehensively and systematically discussed,and the advantages and disadvantages of each type of composite slab and different types of slabs connected technologies were summarized.Finally,the problems and shortcomings of current research on composite slab were pointed out.