The utility model discloses a rainproof type cable inlet wire structure, including rain -proof cap, rain -proof disc, sealing washer I and sealing washer II, the upper portion of rain -proof cap is the abrupt platform of outer hexagonal type, its lower part is the cylinder of outband screw thread, it has the circular shape recess upwards to open from the bottom surface of abrupt platform, I scarf joint of sealing washer is in the recess, perpendicular the opening downwards of top surface intermediate position from abrupt platform has the through -hole, it has the through hole to open downwards from the top surface intermediate position of rain -proof disc, the cylinder insert downtheholely and with rain -proof disc threaded connection, II joints of sealing washer are on the round platform of last hole handing -over department under with. The utility model discloses processing is convenient, and is rain -proof effectual, sealed degree is high, has avoided the drawback that old modes such as sealed glue can not reuse.