During the installation of movable downhole choke and other tools during wireline operations, due to the lack of a pre installed working tube in the wellbore, in order to avoid the tool from sitting on the coupling, the coupling locator needs to be used for positioning after the well is drifting. Therefore, an additional positioning operation is added throughout the entire operation process, reducing the efficiency of the operation and increasing the risk of the operation. In response to the above issues, this article uses the principle of eddy current to identify the inner diameter difference between the tubing body and the coupling, and independently develops an integrated tool for Integrated tool for drifting and positioning. The lower end of the tool has the same structure as the drifting gauge to drift, and an eddy current sensor is installed on both sides of the middle part in a staggered manner to achieve coupling identification and tool up and down direction judgment. A storage element and battery are installed on the upper end to achieve data storage and power supply. After completing the drifting, this tool can retrieve the depth corresponding to each coupling and the wireline operation winch that the tool passes through in the wellbore through data playback of the storage unit, achieving two operations of drifting and positioning in one drifting operation. The tool is 52 mm long, with a pressure resistance of 35 MPa and a temperature resistance of 120 ℃. It was tested on-site at a well in a southwest oil and gas field of PetroChina at a depth of 3500 m. The results were good, and the coupling recognition rate reached 100%. Compared to traditional coupling positioner which can only locate one coupling, the tool also achieves precise positioning of each coupling. The successful use of this tool has reduced the number of wireline operations during the tool placement process, improved operational efficiency and reduced operational risks.