The invention relates to a bridge non-metallocene and preparation and application thereof. The structure of the bridge non-metallocene is shown in a general formula (1), wherein in the general formula (1), M is Ti, Zr, Ni, Nd, Y, Rh, Hf, Sc, La or Sm; X is Cl or Br; R is H, C1-C10 aliphatic groups, and C6-C20 arene groups; and R'1, R'2, R'3, R'4, R1, R2, R3 and R4 are H or C1-C10 aliphatic groups, wherein any two substituents can be the same or different. The bridge non-metallocene is used for catalyzing non-polar olefin polymerization or copolymerization, or non-polar olefin and polar olefin copolymerization; and the bridge non-metallocene is high in catalytic activity, good in stability and less in application amount of a catalyst promoter, the molecular weight of an obtained copolymer is high, and an insertion rate of monomers is high.