The utility model discloses an assembled throttling control device. The assembled throttling control device is characterized by comprising a sleeve, a valve core, a valve rod, a valve seat and a throttling module, mounting concave tables are arranged on the sleeve and the valve seat; a mounting boss corresponding to the mounting concave table is arranged on the throttling module, and the throttling module is fixedly connected with the sleeve and the valve seat through screws. The device is simple in structure and convenient to disassemble and assemble; by adopting the split mounting type throttling device, the sleeve and the throttling module are designed in a split manner, so that when the throttling module needs to be modified and changed each time, only the throttling module needs to bereplaced, the whole sleeve does not need to be replaced, the test period is greatly shortened, and the test cost is greatly reduced.