The utility model discloses a visual flow control's ball valve, including ball valve casing, case, valve rod and valve rod installation device, valve rod installation device includes a cylindricality installation section of thick bamboo of being connected with the ball valve casing, and the valve rod bottom is connected with the case, and a cylindricality installation section of thick bamboo is passed on the top, and cylindricality installation bobbin base portion is connected with the ball valve casing, and the top is provided with the flow control panel, is provided with the flow scale on the flow control panel, and the valve rod top is connected with the rocker, and the rocker includes that the flow control who cup joints in the valve rod outside coils and coils the handle of being connected with flow control. The utility model discloses technical scheme's a visual flow control's ball valve sets up flow control panel, flow control dish, flow scale, pointer etc. On the ball valve, realize directly perceived the reading of ball valve during operation flow, the accurate ball -handling valve flow volume of convenient to use person, realize during convenient to use to flow of control, flow read with operating time's calculation.