The present invention provides a home safety monitoring system and method. The system comprises a fiber sensor and an ultrasonic sensor; the fiber sensor and the ultrasonic sensor are connected with a host through the wired or wireless mode; the host is configured to determine the type of targets in a monitoring area and the motion intensities of the targets in the monitoring area according to the signal waveform of the fiber sensor, the targets in the monitoring area are identified and determined according to the scanning data of the ultrasonic sensor, wherein the fiber sensor cannot be influenced by the environment temperature, the humidity, the illumination and the background changing; the number of the fiber sensors can be greatly reduced in the perception area with the same area so as to reduce the cost power consumption through adoption of the optical fiber patch cord snakelike wire laying wiring mode; the data detection is performed by employing the optical fiber patch cord to obtain waveform data through detection, and the targets can be classified and the motion intensities of the targets can be determined through the analysis and processing of the waveform data; and the human body data collected by the ultrasonic sensor is the waveform data and is different from the image and/or video in the prior art, and even if the human body data is leaked caused by invasion, the family member privacy data cannot be leaked so as to enhance the system privacy.