The paper presents the research and design of an automatic monitoring care system for Phalaenopsis Orchid. The central device is designed based on the Atmega16 microcontroller to control. The sensors measure the temperature, humidity and soil moisture around the orchid integrated in the device to assess the ecological condition of the plant. An interface developed on the Smartphone allows to collect and display information about the IoT (Internet of Things) monitoring care system. Initial results show that the device has worked well, suitable for taking care of the orchid in household scale, to help the farmer plant the orchid more efficiently.