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The utility model relates to the field of fertilizer production and processing, in particular to slow-release fertilizer particle accurate partition screening equipment which comprises a base, a bearing column is fixed on the upper side portion of the base, a funnel is connected to the upper side portion of the bearing column, a first guide rod is arranged on the bottom face of the upper portion of the bearing column, and a first spring is arranged outside the first guide rod in a surrounding mode. A first screening frame is slidably connected to the lower portion of the first guide rod, a discharging opening of the funnel corresponds to the upper portion of the first screening frame, supporting guide rods are arranged on the two sides of the first screening frame, and second springs are arranged on the lower portions of the two supporting guide rods. The double-layer screening design of the first screening frame and the second screening frame is adopted, the screens with different hole diameters are arranged, slow-release fertilizer particles with different sizes can be screened out more accurately, the motor drives the disc to rotate, the inclined block periodically impacts the contact block, the first screening frame vibrates up and down, and therefore the slow-release fertilizer particles can be screened out more accurately. Therefore, the process that the particles pass through the aperture of the screen is accelerated, the screening efficiency is improved, and the particle distribution uniformity is guaranteed.