The invention discloses a novel algae culture device. The novel algae culture device comprises an upper-layer shell and a lower-layer shell, wherein each of the upper-layer shell and the lower-layer shell comprises an outer-layer shell and an inner-layer shell a second screen body is arranged on the inner surface of each inner-layer shell and an upper cover is arranged on the top of the upper-layer shell an input water buffering tank is arranged at the bottom of the upper cover a lamp tube is arranged at the bottom of the input water buffering tank a base is arranged at the bottom of the lower-layer shell the base is provided with a first water discharging hole and a second water discharging hole the second water discharging hole is communicated with a second water pipe and the second water pipe is communicated with a first water pipe and the bottom of the first water pipe is connected with a water pump. The novel algae culture device has the beneficial effects that in a washing process, the upper-layer shell and the lower-layer shell are detached and the inner-layer shells are taken out to be washed, so that the device is convenient to use water in the upper-layer shell and the lower-layer shell can be circulated through the water pump, and alga can absorb nutrient substances in the water in a circulation process so as to filter the water and the water does not need to be frequently exchanged so that a lot of water resources and manpower cost are saved.
