The invention discloses a waterway switching mechanism with a pulse electromagnetic valve and a shower head.The waterway switching mechanism comprises a valve deck, a valve seat and the pulse electromagnetic valve; the valve deck is matched with the valve seat, a water inlet and at least two water outlets are formed, and the water inlet is formed between the two water outlets; the waterway switching mechanism further comprises a water sealing connecting rod installed in a water via cavity defined by the water outlets; the pulse electromagnetic valve is installed at the first water outlet, and a pressure adjusting cavity is formed between the pulse electromagnetic valve and the water sealing connecting rod.According to the waterway switching mechanism with the pulse electromagnetic valve and the shower head, the structure is simple, and waterways are reasonable in design and easy to achieve; by means of the waterway switching mechanism, switching of two or more waterways is achieved through one pulse electromagnetic valve, complete plugging of the waterways is avoided, it is guaranteed that switching operation can be conducted under the low battery condition, and the difficulty that in the prior art, a whole water outlet system is dead locked due to insufficient electricity supply is overcome.