A waterway switch valve set and a shower head using same includes a fixed unit with an inlet waterway and a rotation unit rotatably connected to the fixed unit. The rotation has a water diversion base and a sealing component unit and can rotate about a rotation axis. The water diversion base is has a cooperated surface vertical to the rotation axis, the cooperated surface is disposed with a plurality of diversion water holes annularly arranged about the rotation axis, the diversion water holes are available to connect to the inlet waterway; the sealing component has a rotation frame and a plurality of press blocks, the rotation frame and the water diversion base are assembled together, and form a synchronous rotation relationship, the press blocks are slidably connected to the rotation frame and are available to slide parallel to the rotation axis.