The invention relates to an exhaust arrester capable of adjusting working pressure. The exhaust arrester comprises a valve body (01), a disk (02), a support bar (03), a support sleeve (14), a control bar (05), an air pressure feedback passage (06), a spring (07), a press plate (09), an adjusting support (10) and a cover (08); the disk (02) is fixed on an appointed position of the valve body (01) by the support bar (03) and the support sleeve (14); the support bar (03) drives the disk (2) to rotate around the axes of the disk; the control bar (05) is used for controlling connection and disconnection of an exhaust gas passage and is fixed on the bottom of the support sleeve (14) by the spring (07), the press plate (09), the adjusting support (10) and the cover (08); the air pressure feedback passage (06) drives the control bar (05) to move; and the spring (07) is used for adjusting the working pressure of an exhaust arrester assembly. When the pressure exceeds a set value by any accidental situation, the exhaust arrester can release pressure in time, ensure that the working pressure is stable and reliable and has adjustable working pressure and simple and convenient implementation.