The invention relates to a safety water intaking well. The safety water intaking well comprises an annular reactive permeable barrier, the space of the reactive permeable barrier is parallel to the vertical direction, and a well chamber for water intaking is formed by the reactive permeable barrier in a defined mode. According to the safety water intaking well, underground water is treated by thereactive permeable barrier, a conventional mode of making the reactive permeable barrier stretch across the underground water area is abandoned, the reactive permeable barrier is arranged to surroundthe well chamber, the requirement of purifying the indoor underground water is met, and water flowing into the well intaking well meets the safety requirement of water demanded in households; the stepof recovering polluted underground water at large area is not involved, it is avoided that reactive permeable barrier are built on a large scale, cost can be saved greatly, and the safety water intaking well is particularly suitable for application and popularization in rural area remote regions having underground water non-point source pollution.