A sensor-operated kitchen faucet comprises a base, a mixing valve, a control assembly and a spout. The base extends vertically to define an inner space. The mixing valve is disposed in the inner space and communicated to a cold source and a hot source to supply a combined fluid. The control assembly comprises a inlet conduit, a outlet conduit, a cushioning member, a solenoid valve and a sensor. The inlet conduit is connected to the mixing valve to receive the combined fluid, the cushioning member comprises an outer tubing and an inner tubing, and the solenoid valve is electrically connected to the sensor and movably disposed at a connecting port communicated between the outer tubing the inner tubing. The spout is fluidly connected to the outlet conduit of the control assembly through a connecting conduit to supply the combined fluid.