The present invention provides a connector test device. The device includes a test jig which has a conductive test pin to detect whether a conductive pin of a connector is appropriately connected to the conductive test pin or not, and a moving pin and a test terminal to detect whether a waterproof pin of the connector is appropriately installed in the connector or not. The device simultaneously displays the electricity conduction states between the conductive pin and the conductive test pin and between the moving pin and the test terminal. The device easily and accurately measures the installed states of both the conductive pin and the waterproof pin provided in the connector.