PROBLEM TO BE SOLVED: To provide a mid-mount type mower in which a connection structure between a machine body and a mower unit, and a connection structure of a power transmission device from the machine body side to the mower unit are simple, and a coupling operation thereof is performed surely.SOLUTION: A mid-mount type mower includes a blade housing 40 provided with a part 620 to be engaged engageable with an engaging part 610 on the machine body side, a power transmission device 7 for connecting an output shaft of a machine body side power transmission device 25A to an input shaft of a mower side power transmission device 25B, and an operation tool 830 for connecting the input shaft to the output shaft by displacing the power transmission device 7 to a machine body cross direction in the connection state where the engaging part 610 is engaged with the part 620 to be engaged.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】機体とモアーユニットとの連結構造、及び機体側からモアーユニットへの動力伝達機構の連結構造が簡単で、その連結作業が確実に行われるミッドマウント型草刈機の提供。【解決手段】機体側の係合部610と係合可能な被係合部620を設けたブレードハウジング40と、機体側動力伝達機構25Aの出力軸とモアー側動力伝達機構25Bの入力軸とを連結する動力連結機構7と、係合部610と被係合部620とが係合した連結状態において、動力連結機構7を機体前後方向に変位させることで入力軸と出力軸とを連結する操作具830とが備えられている。【選択図】図1