Assembly type gutter expansion joint node

The utility model relates to an assembly type gutter expansion joint node which comprises a first gutter and a second gutter. The side, close to the expansion joint, of the second gutter is provided with an expansion joint side sealing baffle extending upwards, the expansion joint side sealing cover plate extends towards the expansion joint side sealing baffle, and the part, exceeding the expansion joint side sealing baffle, of the second gutter forms a downward hook; the telescopic stainless steel communicating pipe is arranged in the expansion joint, one end of the telescopic stainless steel communicating pipe penetrates through the expansion joint side sealing baffle to be communicated with the second gutter, and the other end of the telescopic stainless steel communicating pipe penetrates through the vertical plate to be communicated with the first gutter; the water falling hopper is arranged in a bottom plate of the first gutter and is used for draining water; the overflow pipe is arranged in the end pla