The present invention relates to a work device connecting device for a riding manager, the support frame 10 attached to one side of the vehicle body of the riding manager; a connection frame 20 attached to one side of the main body of the working machine to enable attachment and detachment to the support frame 10; After the connection frame 20 is inserted into the support frame 10 in a docking and clamping manner, including the multi-point support, the connection frame 20 is capable of being attached to and detached from the support frame 10 . According to the present invention, the mounting and detachment of the working machine is made possible through the multi-point support by the docking and clamping method, thereby improving the convenience of the mounting and detaching work, and significantly shortening the time required for attaching and detaching the working machine, and firmly maintaining the mounted state of the working machine. This has the effect of further improving work safety.
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