The invention provides an electromagnetic detection
system based on a sea-bottom crawler, belonging to the field of geophysical exploration technology, comprising: a survey vessel, a sea-bottom crawler, a transmitting antenna, a receiving node array, a control
chip, and a power supply; the survey vessel is connected to the sea-bottom crawler through a traction
rope, and the
tail of the sea-bottom crawler is provided with a drag cable, on which the transmitting antenna and the receiving node array are mounted, and both the control
chip and the power supply are configured in the integrated electronic cabin of the sea-bottom crawler; the power supply provides electrical energy to the sea-bottom crawler, transmitting antenna, receiving node array, and control
chip, and the control chip is electrically connected to the transmitting antenna, the receiving node array, and the power
system of the sea-bottom crawler; the control chip is configured to have an electromagnetic detection interference compensation module for performing
interference elimination and compensation on
reflected waves received by the receiving node array. It solves the technical problem of insufficient detection accuracy in existing technologies.