The utility model provides a linkage pressure relief device relates to the petroleum and natural gas exploitation technique. To set up through shearing pin nail and connect at the first joint and thefirst sliding sleeve of linkage pipe one end, can form the pressure releasing pathway with the linkage pipe intercommunication between first joint and first sliding sleeve, to set up through the 2nd shearing pin nail and connect at the second sliding sleeve and the seal cover of the linkage pipe other end, set up the pressure release hole that is covered by the seal cover on linkage pipe, cut offshearing pin nail through lifting the tubular column, thereby expose pressure releasing pathway, make oil pipe and the empty intercommunication of the oil sleeve annulus on packer upper portion, continue to lift the tubular column and cut off the 2nd shearing pin nail, thereby expose the pressure release hole, make oil pipe and the empty intercommunication of the oil sleeve annulus of packer lowerpart, and then the empty intercommunication setting of the empty oil sleeve annulus with the lower part of the oil sleeve annulus who makes packer upper portion, the problem of the negative pressuresticking of tool is solved, easy operation is convenient, can shorten construction cycle, and do not need again to the stratum injected liquid body, reduce formation contaminant, help improving oil gas output.