Electric power control apparatus for construction machine

Provided is an electric power control apparatus (1) capable of suppressing charge/discharge with respect to an electrical storage device under an anomalous condition. The electric power control apparatus (1) includes an electrical storage device (31) including electrical storage modules (32), a module-temperature detection section (33), a temperature-condition judgment section (61), an adopted-module-temperature selection section (63), and a charge/discharge-electric-power-upper-limit setting section (65). The temperature-condition judgment section (61) makes a judgment on a temperature condition of the electrical storage device (31) based on a temperature (Tz) detected by an electrical-storage-device temperature detection section (37). The charge/discharge-electric-power-upper-limit setting section (65) sets charge/discharge electric power upper limit of the electrical storage device (31), based on a module temperature (Tmin) which is deviated to a side of a non-steady temperature condition and selected by the adopted-module-temperature selection section (63), when the electrical storage device (31) is judged to be under the non-steady temperature condition.