Switch-type fracturing sliding sleeve of oil well

The utility model relates to a switch-type fracturing sliding sleeve of an oil well, and the sliding sleeve comprises a fracturing sliding sleeve consisting of a positioning connector (1), a protecting hood (2), an anti-rotation pin (3), a sliding sleeve body (4), an upper rubber seal (5), a nozzle body (6), a lower rubber seal (7), a shear pin (8) and a connector (9), a switch key and the like, and is characterized in that a meshed boss which corresponds to a meshed groove in the outer wall of a jaw (13) of the switch key is arranged on the inner pipe wall of the sliding sleeve body (4) of the fracturing sliding sleeve. The switch-type fracturing sliding sleeve of the oil well has a reasonable structural design, is convenient to operate, is used in layered operation after the oil well is layered and fractured, and the opening and the closing of all production layers can be controlled randomly by the switch key.