This paper presents an Internet of Things (IoT) system which is controlled by human voice and natural language, including appliance and indoor environment sensor. The appliances will be bundled with a socket controlled by relay and a MediaTek LinkIt 7697, which is marketed Arduino compatible development board. The environment sensor was DHT11, a marketed indoor environment sensor, which also bundled with a MediaTek LinkIt 7697. The protocol to communicate with both MediaTek LinkIt 7697 is Message Queuing Telemetry Transport (MQTT). The gateway for this IoT application is a QBoat Sunny, it is home IoT gateway of Taiwan QNAP Corp. which has built-in Linux and numerous functions. Based on these functions, the IoT system can access voice recognition and natural language parsing functions of Google to accomplish the jobs.