Child and Women play vital roles in our society from their birth to the end of life. In the past few years, crime against child and women has increased to a great extent. They are facing many securities related problems. We can hear the news of women harassments than their achievements. Trafficking in women and children is one of the worst abuses of human rights. But it is very difficult to estimate the scale of the phenomenon as trafficking is closely related to child labour, bonded labour, child marriage, kidnapping and abduction and prostitution even though these phenomena can exist also independent of trafficking. In such situations, they are helpless and don?t have any way to protect them or inform it to their family members, neighbours or police station and they feel as handicaps. In order to overcome such problems several apps and smart security systems like armband, bracelet, jacket, smart toy, smart watch and wristband are being implemented for both child and women. This survey paper covers various techniques and systems proposed by the various researchers and analyse the merits and demerits of those systems. By overcoming the drawbacks of the existing systems, we proposed a new system based on IOT.