A mobile terminal and a liquid metal heat dissipation method thereof. The liquid metal heat dissipation method of the mobile terminal includes: when an inner or surface temperature of a mobile terminal exceeds a set temperature, controlling liquid metal pre-positioned in the mobile terminal to flow to a high-temperature area whose temperature exceeds the set temperature to perform a head absorption operation, and controlling the heat-absorbed liquid metal to flow to a non-high-temperature zone lower than the set temperature to perform a heat dissipation operation.