Provided are a vehicle card key and a method of manufacturing the same. The vehicle card key is used to lock/unlock a vehicle door or start an engine in wireless communication with a vehicle. The vehicle card key includes a lower cover, a circuit board stacked on and coupled to a top of the lower cover, and an upper cover coupled to the lower cover as one body to cover an upper side of the circuit board. The lower cover and the upper cover are formed of a thermo-hardening resin.