A chip testing system and an environment control apparatus are provided. The chip testing system includes the environment control apparatus, a central control device, and a chip testing device. The environment control apparatus includes an apparatus body and a pressing device. When the chip testing device is disposed in an accommodating chamber of the apparatus body, and the central control device controls the pressing device to press a plurality of side surfaces of a plurality of chips carried by the chip testing device, the central control device controls the chip testing device to perform a testing operation to the chips. After the chip testing device performs the testing operation to the chips, a plurality of movable members of the pressing device protrude from a contacting surface of the pressing device and push the chips to separate the chips and the contacting surface.