The present invention relates to a pet fence that is used when pets are used at home, and more particularly, the angle of the connection part is easily adjusted in a state in which the unit pet fence panels constituting the pet fence are connected to each other. Not only to make it possible to easily implement a variety of shapes of pet fences, but also to the devised to maintain a stable shape implemented in various forms. The present invention is a pet fence formed by connecting unit pet fence panels to each other when raising or temporarily holding a certain space when raising a pet at home, the pet fence is implemented inside the fence The observation port is formed inward by the grating-shaped grate so that you can see well, the engaging groove into which the engaging projection is fitted is formed in the upper horizontal bar, and the engaging projection is fitted into the engaging groove in the lower horizontal bar. A frame adapted to be laminated assembled； The vertical bar of the frame includes an assembly guide flange, which is guided and assembled into an insertion incision groove created between the angle adjusting member and the arm hinge tube, at the upper and lower ends, and the angle adjusting protrusion of the angle adjusting member is selectively positioned on the outer circumferential surface thereof. A male hinge tube having an angle adjusting groove formed therein； A female hinge tube disposed vertically on the vertical bar of the frame and having a gap in which a male hinge tube can be inserted； The upper and lower ends are formed in a gap with respect to the female hinge tube to form an insertion cut groove for guiding the assembly guide flange of the male hinge tube, and is selectively inserted into an angle adjusting groove formed as an outer circumferential surface of the male hinge tube. An angle adjusting member having an elastic wing piece formed on both sides of the angle adjusting protrusion being positioned on the inner surface thereof
