The invention relates to an intelligent battery pack detection and control device for an underwater robot. A base is provided with a battery pack input fixing device; the upper bottom surface of the base is provided with a water leakage sensor, and the lower bottom surface of the base is fixedly provided with a fuse, a relay and a watertight socket connector and is further connected with a battery pack detection circuit board by virtue of a bolt. An intelligent battery pack detection and control method comprises the step of controlling the power supply of a battery pack according to the voltage, current and temperature information of the battery pack and information about whether a battery compartment leaks water. According to the intelligent battery pack detection and control device and the intelligent battery pack detection and control method, the service life and safety of the battery pack are improved, and the safety performance of the underwater robot is also improved.
