The invention discloses a third-order intermodulation-suppression and direct current offset component-elimination receiving method. The method includes the following steps that: radio frequency signals are received through an antenna; the radio frequency signals are amplified through a low-noise amplifier; radio frequency signals generated by a frequency synthesizer are inputted into a phase controller, and the phase of the phase controller is cyclically switched among 0 degree, 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 degrees and 315 degrees; the received signals and the generated signals are mixed, and radio frequency signals are filtered out, so that zero-intermediate frequency component signals can be obtained; the zero-intermediate frequency component signals are converted by a digital-to-analog converter, so that eight components can be obtained; and an in-phase component and a quadrature component are obtained by using given formulas. According to the third-order intermodulation-suppression and direct current offset component-elimination receiving method of the invention, the eight specified different phases are adopted, so that eight sequential signals are obtained; operation is performed on the eight sequential signals with the computing formulas, so that the pure in-phase component I and quadrature component Q can be obtained; and therefore, the anti-interference ability of the receiver can be effectively improved.