A controlling circuit for a motorcar front window wiper accommodating apparatus of a concealed type wherein a wiper is accommodated within an opening portion (2) provided between the front window lower edge and the bonnet rear-end edge (F), the opening portion is opened and closed by the cowl cover (4), to a controlling circuit for interlockingly control­ling the operation between the cowl cover (4) and the wiper (3). It is adapted to operatively cooperate the opening and closing operations of the cowl cover (4) with the wiper (3), to actuate the wiper (3) when the cowl cover (4) reaches the position where it does not interfere with the lifting wiper wiping portion to be lifted in the position before it reaches its fully open position in the opening process of the cowl cover (4) so as to retain the speediness of the wiper actuation to remove the delay feeling for improving the safety.