Internal combustion engine control apparatus

To provide an internal combustion engine control apparatus which is capable of obtaining an accurate air flow rate by using a thermal air flow rate detecting apparatus (2) at the time when pulsation is caused. The internal combustion engine control apparatus according to the present invention is featured by including: storage means for storing a plurality of air flow rate conversion tables T1 and T2 used to convert a signal of a heating resistor to an air flow rate; selection means for selecting a conversion table to be referred to from the plurality of conversion tables T1 and T2 stored in the storage means; and conversion means for converting a signal of the heating resistor into an air flow rate by referring to the conversion table selected by the selection means, and is featured in that the selection means performs selection of the conversion table according to a state value which directly or indirectly indicates the state of air flow pulsation generated in a passage (64).