A method and apparatus for displaying a state of current consumption of a battery in a portable terminal are provided. The method includes measuring a value of consumed current at a preset period, supplying the measured current value to an Analog-to-Digital Converter (ADC) through an ADC port, confirming battery compensation offset values by the ADC, determining whether values corresponding to the battery compensation offset values are present in a preset table, and if it is determined that the values are present, calculating a battery voltage level compensation value with reference to the table, applying the battery voltage level compensation value to an actual detected voltage, and displaying a remaining amount of the battery according to the compensation value applied voltage.