The invention discloses an indoor intelligent control system and method based on voice recognition. The system comprises a voice signal collection device, a voice signal screening device, a voice characteristic analyzer and a control signal sender, wherein the voice signal collection device collects voice signals emitted by people indoor in real time via N voice signal collectors placed indoor; the voice signal screening device screens a voice signal of the highest signal intensity and uses the screened voice signal as a voice signal to be analyzed; the voice characteristic analyzer analyzes the voice characteristic of the voice signal to be analyzed and converts the voice characteristic into corresponding character information; and after that a character type recognizer determines the character information to be control type character information, the control signal sender generates a corresponding equipment control signal, and transmits the equipment control signal to corresponding intelligent household equipment, and the intelligent household equipment is controlled to enter the corresponding work mode. According to the system and method, people can carry out voice control on indoor electrical equipment on the premise that no handheld intelligent terminals are used, and the household intelligent level is improved.