1. A method for registering and executing a preferred function in a mobile communication terminal, the method comprising: registering a function and a configuration value and use character string/numeral string value for the function, to a one-touch execution object; and when a one-touch input for the one-touch execution object is sensed, executing the function registered to the one-touch execution object, by the configuration value and use character string/numeral string value registered to the one-touch execution object.