The invention belongs to the technical field of concrete curing and particularly relates to a concrete curing device. The concrete curing device comprises a base. A handle is fixedly connected to theupper end of the base. A movement mechanism is fixedly connected to the lower end of the base. Installation pieces are in sliding connection with the left side and the right side of the upper end of the base. A cavity is formed in the base. An adjusting mechanism used for adjusting the installation pieces is arranged in the cavity. A compressing mechanism is arranged on the rear side of the base and rotationally connected with the left side wall and the right side wall of the base. A transitional mechanism is fixedly connected to the upper end of the base. The concrete curing device has the beneficial effects that multiple rolls of curing film can be carried and installed at the same time, in the film laying process, the device does not need to pause to replace the film and can continuously operate, the operation time shortening effect is remarkable, through arrangement of a press roll, air between the curing film and concrete can be automatically exhausted, the curing film can be tightly attached to the surface of the concrete, and the sealing effect of the curing film is improved.