A connecting assembly for connecting boards includes a rod member and a buckle member. The rod member includes a head portion, a rod body and a tip portion which are integrally formed and connected in sequence. By using an engaging hole to engage with an annular engaging groove, the connection of the boards is more firm due to a circumferential joint. Besides, the buckle member is provided with a cross-shaped groove, which makes it easier for the user to adjust the direction when in use. The structure design is reasonable and more convenient for use.