Efficient bacillus thuringiensis cry8H gene, protein for vaginata destructive insect and uses of the same

The invention discloses a Bacillus thuringiensis cry8H gene, protein and application to kill Coleoptera pest in the biological prevention technical domain, wherein the nucleotide sequence of high-toxicity cry8H gene of Coleoptera pest is displayed as SEQ ID NO1; the nucleotide sequence of the expressed cry8H gene synthesized by artificial design is displayed as SEQ ID NO3, which has the property to resist Holotrichia oblita, Anomala corpulenta and Holotrichia parallela.