The invention relates to a shaking bed, in particular to a mechanical shaking bed for infants in summer. According to the mechanical shaking bed for the infants in summer, a bed body can be shaken through a machine, musical sound can be given to humor the infants to fall asleep, and an air-blowing cool-down device is arranged. The mechanical shaking bed for the infants in summer comprises a base,first supporting rods, an arc-shaped guide rail, a guiding block, the bed body, a first spring, a connecting rod, a motor, a first rotary disc, a first movable plate, a second rotary disc and the like. The first supporting rods are arranged on the front side and the rear side of the left side of the top of the base in a bilateral symmetry mode, and the arc-shaped guide rail is arranged between thetops of the first supporting rods on the left side and the right side. The guiding block is slidably arranged in the arc-shaped guide rail. The effects that the bed body can be shaken through the machine, the musical sound can be given to humor the infants to fall asleep, and the air-blowing cool-down device is arranged are achieved, blades are driven to rotate through a second rotary shaft and athird rotary disc, the blades rotate to generate air to make the infants to feel cool, and the infants fall asleep advantageously as soon as possible.