The invention discloses a novel C1-symetrical ethidene bridged linkage indene fluorene zirconium compound, a method for preparing the same and application thereof in alpha-olefinic polymerization and oligomerization. The C1-symetrical zirconium compound has the characteristics that: at least one of indene 3-position substituents R1, R2 and R3 is an aryl group; the compound is a high-efficiency catalyst, can be used for catalyzing ethane polymerization and has moderate catalytic activity, and the obtained polyethylene has higher molecular weight and broader molecular weight distribution; when the compound is used for catalyzing the ethane polymerization, the propylene dimerization products can be exclusively obtained, and 2-methyl-2-amylene is obtained in high selectivity. The structure of the compound can be represented by a general expression below.