A waterproof strip light for easy automated production, comprising: a strip light holder, a light housing, provided on said strip light holder and extending along the length, with a mounting opening at least at one end; a light emitting circuit board, provided in said light housing, with a first electrical connection member at one end, said first electrical connection member being close to said mounting opening; a waterproof light holder, set on said mounting opening; said waterproof light holder comprises, an end cover, set on said mounting opening with an insertion hole, a plug connector, a connection structure fixedly connected to the inner side of said end cover, the plug connector body extending into said light housing and provided with a first waterproof structure between the plug connector body and the inner wall of said light housing; an electrical connection assembly, comprising an external member provided on said insertion hole, a second electrical connection member provided on said plug connector to elastically abut against said first electrical connection member for tight electrical connection and a conductive member connecting said external member to said second electrical connection member, said conductive member passing through a channel into said plug connector and sealing the channel through a second waterproof structure characterized in that said first waterproof structure comprises a front baffle, set on said plug connector; a rear baffle, spaced from said front baffle so as to form a first glue filling cavity between the plug connector and the inner wall of said light housing, said first glue filling cavity having glue filling holes; and in that said plug connector is provided with said second waterproof structure on the outside of said rear baffle. a strip light holder, a light housing, provided on said strip light holder and extending along the length, with a mounting opening at least at one end; a light emitting circuit board, provided in said light housing, with a first electrical connection member at one end, said first electrical connection member being close to said mounting opening; a waterproof light holder, set on said mounting opening; said waterproof light holder comprises, an end cover, set on said mounting opening with an insertion hole, a plug connector, a connection structure fixedly connected to the inner side of said end cover, the plug connector body extending into said light housing and provided with a first waterproof structure between the plug connector body and the inner wall of said light housing; an electrical connection assembly, comprising an external member provided on said insertion hole, a second electrical connection member provided on said plug connector to elastically abut against said first electrical connection member for tight electrical connection and a conductive member connecting said external member to said second electrical connection member, said conductive member passing through a channel into said plug connector and sealing the channel through a second waterproof structure characterized in that said first waterproof structure comprises a front baffle, set on said plug connector; a rear baffle, spaced from said front baffle so as to form a first glue filling cavity between the plug connector and the inner wall of said light housing, said first glue filling cavity having glue filling holes; and in that said plug connector is provided with said second waterproof structure on the outside of said rear baffle. a front baffle, set on said plug connector; a rear baffle, spaced from said front baffle so as to form a first glue filling cavity between the plug connector and the inner wall of said light housing, said first glue filling cavity having glue filling holes; and in that said plug connector is provided with said second waterproof structure on the outside of said rear baffle.