Fruit tree breeding hybridization isolation device

The utility model discloses a fruit tree breeding hybridization isolation device which comprises a base, stand columns, a side isolation net and a top net, the base is formed by mutually inserting and connecting a plurality of connecting rods, one end of each connecting rod is provided with an inserting head, the other end of each connecting rod is provided with an inserting groove, and the connecting position of each connecting rod is connected with a positioning pin in an embedded mode. The lower surface of the base is fixedly connected with vertically-distributed inserting columns, a plurality of annular grooves are formed in the surfaces of the inserting columns, the upper surface of the base is provided with a plurality of vertically-distributed stand columns, the bottoms of the stand columns are connected with the base in an inserting mode, and side separation nets are arranged on the inner sides of the stand columns and connected with the surfaces of the stand columns in an adhesive mode. A top net is