The invention discloses a waterproof in-situ fence stake with security measures and belongs to the field of security facilities. The waterproof in-situ fence stake comprises more than two multilayer tubular piles and a spring buckle located between the neighboring tubular piles and used for fixing the inner tubular piles sequentially pulled out of the outer tubular piles; the spring buckle comprises spring grips respectively embedded in side walls of the neighboring tubular piles and buckle holes matched with the spring grips; each spring grip comprises a buckle groove embedded in the side wall of each tubular pile and a spring and a latch body located in the buckle groove, and the latch body is fixedly connected with the bottom of each buckle groove via the spring; the buckle holes are located in the side walls of the neighboring tubular piles corresponding to the spring grips; the tubular piles on the outermost layer are vertically embedded underground with upper ends exposing out of the ground. The waterproof in-situ fence stake has the advantages of convenience in use, saving space and in-situ hiding, and waterproof and dustproof functions are achieved.