Abstract: Kunyu mountain is located in Jiaodong peninsula and is typical of warm Tempreate Zone. The species of plants are abundant. There are 1058 species which belong to 132 families and 571 genera. The flora is complex in geographical elements, having 15 types and 12 subtypes. There are 16 large and major families in this area, such as, Compositae, Gramineae, Leguminose, Rosaceae, Cyperaceae, Liliaceae, Cruciferae, Polygonaceae; The number of them is 285 genera and 612 species, they make up 51.2 per cent of the total genera and 59.94 per cent of the total species and become the basic frame of the flora composition of Kunyu mountain. The composition of Raunkeaer's life form are arranged, Ghanerophytes(34.40%)> Hemicryptophytes(27.13%)> Therophytes(19.66%)> Cryptophytes(9.64%)> Chamaephytes(9.17%). Based on the analysis of the dominant geographical elements of the flora. The paper has discussed the major characters of the flora as follows, (1) the species of plants is rich and it is obvious that temperate elements play important roles in this place, at the same time, the proportion of tropical elements is high. (2) The flora is diverse in distribution types and is complex in geographical elements, and the characters that the flora connects widely with others have advented. (3) The flora shows a certain old in origin and a certain low in endemicity, furthermore, having a good number of monotypic genus. (4) The species of rare and endangered plants are rich and assemble at the level of family to a certain degree.

Key words: Kunyu Mountain, flora, geographical element