A surface tracking nozzle capable of removing water near a nozzle while following a variation in a shape of a moving object and a variation in distance, a moving object surface observation device, and a moving object surface observation method are provided. The surface following nozzle 22 includes a nozzle 28 for injecting gas from a tip end, a partition part 32 that closes the base end of the nozzle 28, and the nozzle 28 through the partition part 32. It is provided at the rear of the nozzle, and includes an elastic member 30 that expands and contracts along the axial direction of the nozzle, and the expansion and contraction part 30 includes an elastic body 42 that applies a force to the nozzle 28 in a forward direction. Have.
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