Parabolic reflector and parabolic antenna

The utility model discloses a parabolic reflector and a parabolic antenna, the parabolic reflector comprises a reflector body, the reflector body comprises a plurality of petal members, the petal members are plastic members and have reflection surfaces, and the reflection surfaces are covered with emission film layers. The plastic component has the advantages of light weight and low material cost. The reflective surface of the plastic member is capable of reflecting radio waves by providing an emission film layer on the reflective surface. A first positioning assembly structure and a second positioning assembly structure are arranged on the two sides of each petal component respectively, and the first positioning assembly structure of one petal component is matched with the second positioning assembly structure of the other petal component in a concave-convex mode and connected with the second positioning assembly structure of the other petal component so that the two petal components can be spliced. The plur