A modeling planting bracket device comprises a pole unit, a first ring member, a second ring member, a flared ring member, and a support ring member. The pole unit includes at least one upright. The first ring surrounds the pole unit and includes at least one first joint connected to the pole. The second ring surrounds the pole unit and includes at least one second joint connected to the pole. The expansion ring member surrounds the pole unit and is disposed on the pole unit, and the outer contour of the expansion ring member is larger than the outer contours of the first ring member and the second ring member. The support ring member surrounds the pole unit and is disposed on the pole unit, and the expansion ring member is located between the support ring member and the second ring member, the outer contour of the support ring member being smaller than the expansion ring member outline. Thereby, the planting plastic forms an auspicious shape of the middle expansion.一種造型植栽支架裝置,包含一立桿單元、一第一環件、一第二環件、一擴形環件,及一支撐環件。該立桿單元包括至少一立桿。該第一環件環繞該立桿單元且包括至少一連接於該立桿的第一接點。該第二環件環繞該立桿單元且包括至少一連接於該立桿的第二接點。該擴形環件環繞該立桿單元且設置於該立桿單元,該擴形環件的外輪廓大於該第一環件與該第二環件的外輪廓。該支撐環件環繞該立桿單元並設置於該立桿單元,該擴形環件位於該支撐環件與該第二環件之間,該支撐環件的外輪廓小於該擴形環件的外輪廓。藉此,將該植栽塑形成中間外擴的吉祥造型。