The invention relates to a sliding sleeve opening-closing string, comprising a coiled tube, a hydraulic sub and an anchor sub. An opening-closing sub that may engage with a sliding sleeve under third hydraulic pressure is disposed on the coiled tube. The hydraulic sub is disposed at the upstream of the opening-closing sub and can drive the opening-closing sub to axially move under first hydraulic pressure. The anchor sub comprises an anchor member that can protrude radially out under second hydraulic pressure so as to be fixedly connected with the sliding sleeve and can return after the second hydraulic pressure is removed; the first hydraulic pressure is greater than the second hydraulic pressure, and the second hydraulic pressure is greater than the third hydraulic pressure. The sliding sleeve opening-closing string can effectively transfer driving force to the sliding sleeve, and sliding sleeve opening-closing construction is highly reliable.