The invention discloses a ganged adjustment device of throttling and pressure-regulating filters, capable of convenient adjustment. The device comprises the multiple filters which are disposed side by side. The structure of each filter comprises an inlet connector, a filter shell connected to the inlet connector, a connection shell connected to the filter shell and an outlet connector connected to the connection shell, wherein a filtering pipe is disposed in the filter shell; a pressure adjustment piston is disposed between the filtering pipe and the filter shell in a sliding manner; sealing plugs are disposed between the pressure adjustment piston and the filter shell, between the pressure adjustment piston and the filtering pipe and between the filter shell and the filtering pipe respectively; a liquid inlet chamber is disposed inside the filter shell which is located between the pressure adjustment piston and the inlet connector; a first installation chamber is disposed inside the filtering shell which is located between the pressure adjustment piston and the connection shell; and a second installation chamber is disposed in the connection shell.