Sampling device convenient for multi-point sampling of swimming pool

The utility model discloses a sampling device convenient for multi-point sampling of a swimming pool, which comprises a detection ship, and the tail part of the detection ship is provided with a marine propeller, a control box and a positioning sensor; a sampling bottle is arranged in the middle of the detection ship, a sampling cover is detachably arranged at the top of the sampling bottle, and a prefabricated hole is formed in the sampling cover; a miniature water pump and an extension plate are arranged at the head of the detection ship, a water outlet of the miniature water pump is connected with a water outlet pipe, a water inlet of the miniature water pump is connected with a water suction pipe, the water outlet pipe penetrates through the prefabricated hole and then extends into the sampling bottle, and the extension plate extends outwards along the head of the detection ship and is fixedly provided with a vertically arranged electric telescopic rod; the output end of the electric telescopic rod penetr