Abstract: Studying the anti-jamming technology of long distance data transmission in the environment of high temperature, high pressure and high humidity; designing an effective data transmission method; and establishing a stable and efficient transmission system are important for the project of developing downhole very broadband seismograph. The progress of anti-jamming technology of long distance data transmission mainly includes: the data acquisition module with low power consumption, miniaturization, high resolution, and large dynamic range; transmission anti-jamming technology; data transmission protocol; and high-precision timing.