A CDMA receiving apparatus includes a receiving section, a memory circuit, an estimating circuit and a generating circuit. The receiving section generates a baseband signal from a received radio signal, searches a path having the highest correlation with the received radio signal, generates a path delay quantity for the searched path and generates a demodulated signal as an object signal from the baseband signal based on the path delay quantity. The memory circuit stores at least one SIR value as a previous SIR value. The estimating circuit estimates the SIR value from the object signal and stores the estimated SIR value in the memory circuit. The generating circuit generates a TPC (transmission power control) bit signal for controlling transmission power from the estimated SIR value and the previous SIR value stored in the memory circuit based on the path delay quantity and a reference SIR value.