Marine plankton conical multi-screen united sampling device

The utility model provides a marine plankton conical multi-screen united sampling device which comprises inverted conical filtering screens, sample collection tubes and a quadrihedron-shaped support, wherein the sample collection tubes are fixed at the bottoms of the filtering screens, and the filtering screens are hung at three corners at the bottom of the quadrihedron-shaped support. According to the marine plankton conical multi-screen united sampling device, the three filtering screens are hung at the three corners at the bottom of the quadrihedron-shaped support and sample marine plankton simultaneously in a united mode, the sampling efficiency is greatly improved compared with the single screen, and the using cost is low. Furthermore, the filtering screens fixed on the support can be collected and released by controlling a rope, so that the operation is simple. In addition, the sampling device is simple in structure and low in manufacture cost.