A manually operated switch for a faucet has a body, an inner pipe, a switching valve assembly. The body is hollow. The inner pipe is located inside of the body and has a flowing way. The flowing way is formed through the inner pipe. The switching valve assembly is slidably mounted inside of the flowing way of the inner pipe and extends out the body. When the switching valve assembly closes the flowing way of the inner pipe, the water pressure will keep the switching valve assembly closed. After the water pressure applied to the switching valve assembly is released or dismissed, the switching valve assembly returns back to an original position so that the flowing way is opened. The opening and closing flowing way can manually control the way of water flowing so that a user may not be scared or burned by the water.