The invention discloses a simplified operating device and a road test instrument system for road test. The simplified operating device for the road test comprises a plurality of operating components,and a functional group can be operated through the operating components and is used for road test simulation and provided with a menu interface displayed through a display device. Functions attached to the functional group can be operated through the operating components, and functions attached to the selected functional group can be displayed by the display device and serve as items of high-frequency operations. Technical problems of complexity in operation and poor user experience are solved. By the a simplified operating device and the road test instrument system for the road test, operation simplification is realized while reasonability in functional planning and functional simplicity and clearness are achieved.