Provided is an apparatus of digitally controlling a plant pot including a case coupled to the outer circumference of the pot, a moisture sensor drawn from the case, for detecting moisture in soil contained in the pot, a liquid crystal display (LCD) installed in the case, for displaying a text or icons, an audio output portion for outputting a voice message, a message storage portion for storing an orderer's message and controlling messages, a data input/output portion connected to a personal computer, for inputting/outputting message data, a key input portion for inputting key signals through a key pad such as a power key or a record key, a battery for supplying power to each circuit block, and a controller for performing a plant pot controlling program, reading a message stored in the message storage portion in response to the moisture sensor and a signal from the key input portion to output a voice to the audio output portion, displaying the name of a plant planted on the pot and information for controlling the plant on the LCD in the form of a text, displaying the current control state of the plant pot in the form of an icon, and downloading the message data from the personal computer through the data input/output portion or uploading the control state data to the personal computer.