According to the present invention, in a structure of a connector device for card having a lock-detecting mechanism of a card, a connector device for card capable of surely detecting that the card is locked with a simple structure without increasing the number of parts newly is provided. The connector device for card comprises: a slide member 6 for engaging with a card 4 attached to and detached from a housing 1 to be able to slide in a direction of inserting and discharging the card 4; a return spring 3 for biasing the slide member 6 in the direction of discharging the card 4; a lock member 5 for holding the slide member 6 against biasing force of the return spring 3 at a position where the card is fitted; and a push rod 8 arranged to be able to shift between a standby position and a pushed position for unlocking the lock of the lock member 5 by pressing manipulation to shift the slide member 6 to a discharge position of the card, wherein a switch member 10 is provided in the housing 1, the switch member 10 being operated in accordance with engagement/disengagement of the slide member 6 and the lock member 5 and detecting that the card is held at the fit position by engaging with the lock member 5.