A fish search system capable of searching for a school of fish at low cost and high efficiency is provided. A fish school searching system according to the present invention includes an unmanned air vehicle and a ship provided with a control means for the unmanned air vehicle. The control means includes a communication means for communicating with an external communication device via a communication line, and the unmanned air vehicle 20 shoots the outside of the own aircraft and the shooting means 23 for landing on the sea and levitating. The buoyancy body 24 and communication means for communicating with the control means via a communication line are included. Information transmitted from the unmanned air vehicle 20 via the communication line includes position information and photographing of the unmanned air vehicle 20. The video information photographed by the means 23 is included, and the control means includes a display means for displaying a video based on the video information. [Selection] Figure 2【課題】低コストかつ高効率に魚群を探索可能な魚群探索システムを提供する。【解決手段】本発明に係る魚群探索システムは、無人飛行体２０と、無人飛行体２０の制御手段を備えた船舶とを含む。制御手段は、通信回線を介して外部の通信機器と通信する通信手段を備え、無人飛行体２０は、自機の外部を撮影するための撮影手段２３と、海上に着水して浮揚するための浮力体２４と、制御手段と通信回線を介して通信する通信手段とを備えており、無人飛行体２０から通信回線を介して送信される情報には、無人飛行体２０の位置情報及び撮影手段２３により撮影された映像情報が含まれ、制御手段は、この映像情報に基づく映像を表示する表示手段を備えている。【選択図】図２
