Magnetoresistance and Hall effect in URhIn5 have been measured across the antiferromagnetic transition temperature TN = 98 K. In the paramagnetic state, Hall coefficient is small and temperature independent. Below the TN, Hall coefficient suddenly changes to a negative value, suggesting that small light electron Fermi surface dominate electrical conductivity. The observation is consistent with small Fermi surfaces detected by previous de Haas-van Alphen experiment.