In view of the defects of low power factor and high harmonic power exhibited by conventional switching power supply, an active BOOST-PFC circuit structure has thus been proposed. An introduction has been made to the working principle of BOOST-PFC, power factor correction and circuit topology. A careful selection has been made of the components, thus realizing the adoption of the BOOST-PFC circuit by NCP1607. By adopting the proposed schematic diagram and the calculated parameters, the BOOST-PFC converter module has been worked out, followed by a test verification of the circuit in LED LCTV power supply. The test results show that the current waveform is capable of tracking the voltage waveform, with a good sine envelope exhibited by the upper current waveform of the inductor. With the increase of the input voltage, the output voltage is stabilized at about 385 V, with its power factor greater than 90%, and the maximum being 99.5%, thus verifying the validity of the theoretical analysis and parameter design.