An electronic card connector includes a base, upper and lower terminals and an ejector including a core, a sliding sheet, a guiding rod and an elastic member. A baffle separates the base into upper and lower slots for respectively accommodating upper and lower cards. The core has a sliding slot, which has one end having a concave positioning point, and the other end having a starting point, such that unidirectional circulation successively from the starting point to the positioning point and then to the starting point is formed. The sheet may slide relatively to the base and has first and second pushing portions respectively disposed in the lower and upper slots. The rod has one end engaged into the sliding slot and is slidable along the sliding slot. The elastic member provides elasticity for moving the sliding sheet into the base and then returning the sheet to a home position.