The invention proposes a QPSK baseband recovery system resistant to a large frequency offset, and is used for solving the technical problem that a carrier is locked slowly or cannot be locked when thefrequency offset of an existing system is large. The QPSK baseband recovery system comprises a data sampling module, a carrier rate pre-estimation module, a switch selection module, a low-speed baseband recovery module, a carrier locking detection module, a high-speed baseband recovery module and a timing synchronization judgment output module; the data sampling module receives and samples a modulation signal; the carrier rate pre-estimation module roughly estimates the modulation signal carrier frequency; the low-speed baseband recovery module based on a closed loop and the high-speed baseband recovery module based on an open loop perform baseband data recovery on the sampled data under the control of the switch selection module; the carrier locking detection module detects whether a local carrier of the low-speed baseband recovery module is locked or not; and the timing synchronization decision output module performs timing synchronization and hard decision on the recovered basebanddata to obtain final demodulation data. According to the QPSK baseband recovery system resistant to the large frequency offset provided by the invention, the baseband recovery speed is high and the bit error rate is low.