The invention discloses a combined type pushing interlocking mechanism for a low-pressure extracted drawer. The combined type pushing interlocking mechanism for the low-pressure extracted drawer comprises an operation interlocking mechanism, an operation locking structural unit, an electric operation auxiliary contact structural unit, a position control auxiliary contact structural unit, a three-position display structural unit, a rotary pushing structural unit and a rotary pushing interlocking structural unit. The drawer can be locked to three positions through the operation locking structural unit, the electric operation auxiliary contact structural unit is used for electrically operating and controlling movement of the drawer, the position control auxiliary contact structural unit is used for controlling electric signals of the drawer in the three positions and can independently control the work position and the test position, the rotary pushing structural unit has the drawer assisting pushing function under a special condition, the three-position display structural unit is used for displaying the states of the three positions of the drawer in the pushing process on a drawer panel, and the operation locking structural unit and the rotary pushing interlocking structural unit are interlocked through the rotary pushing interlocking structural unit, so that false operation is avoided.