The present invention discloses a remote homecare monitoring system that includes a behavior detector, an image capture device, and a gateway. The behavior detector detects an abnormal activity behavior, and the image capture device captures image data of a user's condition, and the gateway transmits the images to a computer of a related unit or a telephone of a related contact person, so that the related unit or contact person can know about the user's activity behavior within a time before or after the occurrence of the abnormal behavior quickly from the image data, and medical professionals can timely provide appropriate medical treatments.