The invention discloses a method for measuring resistance meeting position of an opening plug in two-stage well cementing operation. The method comprises the following steps that (1) after the completion of first stage well cementing construction, the pressure is released to 0 MPa, and whether return flow is normal or not is checked; (2) the opening plug is released; (3) a conversion device is connected to a logging cable, then one or two 5-inch drilling rods are connected, lowering is conducted at a speed of 50 m/min, and the resistance meeting position of the opening plug is judged through the cable tension; (4) when a measuring instrument reaches the position of a grading hoop, the opening plug is impacted at a speed of 60 m/min, and thus the opening plug is completely sit in an openingsleeve of the grading hoop; (5) the drilling rods are pulled out at a speed of 80 m/min; and (6) the pressure is built until the grading hoop opens the pressure, thus a circulating hole of the grading hoop is opened, and circulation is established for preparing secondary stage well cementing operation. According to the method, the position of the opening plug can be quickly determined and judged,the circulation hole of the grading hoop can be quickly opened, the normal operation of the secondary stage well cementing operation is ensured, and the construction safety is effectively improved.