Abstract: A decorative device for concealing the top of curtains and curtain fixtures includes a pair of fixing plates, a pair of L-shaped slide plates and first and second shielding plates. Each of the L-shaped slide plates has an elongated plate which is connected slidably to its respective fixing plate. Each of the fixing plates has two opposite hook members which prevents the elongated plate of the slide plate from being detached in a direction opposite to the sliding direction of the elongated plate. Each of the slide plates has a connecting plate which is connected to its respective shielding plate. Two L-shaped members are formed adjacent to the upper and lower sides of each of the connecting plates in order to form two receiving grooves which are adjacent to the upper and lower sides of each of the connecting plates. Each of the first and second shielding plates has inwardly curving upper and lower sides whose edges are received by the receiving grooves of the connecting plates.