PROBLEM TO BE SOLVED: To provide a mounting detection system of an agricultural work machine capable of detecting a mounting state of the agricultural work machine, which is mounted to a tractor and performs farm work, without connecting a terminal.SOLUTION: A mounting detection system of an agricultural work machine 2, which is detachably mounted to tractor 1 and performs farm work, comprises: a power supply part 31 installed on the tractor 1 side a power reception part 32 installed on the agricultural work machine 2 side and a detection part 32a. Power can be supplied wirelessly between the power supply part 31 and the power reception part 32. The detection part 32a detects whether or not the power reception part 32 is receiving power from the power supply part 31.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】トラクタに装着して農作業を行う農作業機の装着状況を端子の接続なしに検知することができる農作業機の装着検知システムを提供することを目的とする。【解決手段】トラクタ1に装着して農作業を行いトラクタ1と脱着可能な農作業機の装着検知システムであって、トラクタ1側に設置される給電部31と、農作業機2側に設置される受電部32と、検知部32aとを有し、給電部31と受電部32の間はワイヤレスで電力の供給が可能であり、検知部32aは、受電部32が給電部31から電力を受けているか否かを検知する。【選択図】図1