The invention discloses an injection type high-molecular polymer solution full-flow state anti-dragging property measuring device which comprises a liquid storage device, a power device, a pressure stabilizing device, an injection device, a testing device and a pipeline system, wherein the pipeline system is connected with the devices; the liquid storage device comprises a liquid storage tank A and a water collection box; the liquid storage tank A is connected with the water collection box through a liquid outlet tube; the power device comprises a centrifugal pump and a frequency converter; the centrifugal pump is connected with the liquid storage tank A through a liquid inlet tube A; the pressure stabilizing device comprises a liquid inlet tank, a valve A, a valve B and a pressure gauge;the liquid inlet tank is connected with the centrifugal pump through a liquid inlet tube B; the injection device comprises a liquid storage tank B, a micro screw rod pump and a valve E; the liquid storage tank B is connected with a testing tube through a stainless steel elbow tube; and the testing device comprises a testing tube, a differential pressure transmitter, a flowmeter, a data acquisitionprocessor and a computer. By adopting the measuring device disclosed by the invention, pre-mixing anti-dragging experiments can be implemented, flow state transition can be clearly observed, injection type anti-dragging experiments can be also implemented, and anti-dragging mechanisms can be further researched.