This design will place in with emphasis the long-distance family pronunciation warning, so long as joins the suitable sensor to be possible to compose the family pronunciation security function alarm system, realizes some intelligent control function, entrusts with an alarm system more complete function, satisfies the people to the safe warning demand, through the voice prompt operation, the man-machine interaction is friendly, this monolithic integrated circuit family pronunciation automatic security alarm system applies the monolithic integrated circuit knowledge, from the design, develops the debugging to complete an application system's entire process.