A plant cultivation device for cultivating epiphytes is disclosed. The plant cultivation device comprises a support member, an adhesive layer and a plurality of rubbers. The support member has a first surface and a second surface opposite to the first surface. The adhesive layer is located at the first surface of the support member. The plurality of rubbers with particle sizes between 3-6 mm is attached to the first surface of the support member through the adhesive layer. A water retaining space is formed between the pluralities of rubber. A method of manufacturing the plant cultivation device and a usage of rubber for cultivating plants are further disclosed.一種植物栽培結構,係用以栽培氣根性植物,其包含:一支持件,具有相對之一第一表面及一第二表面;一黏著層,設於該支持件之第一表面;及數個橡膠顆粒,粒徑介於3-6公厘之間,該橡膠顆粒係以該黏著層附著於該支持件之第一表面,且相鄰之該橡膠顆粒之間係形成一保水空間。本發明更包含該植物栽培結構之製作方法及橡膠顆粒用以栽培植物之用途。1‧‧‧支持件2‧‧‧黏著層3‧‧‧橡膠顆粒31‧‧‧保水空間32‧‧‧凹槽