Abstract: The present application discloses a recombinant Newcastle disease virus genome, a recombinant Newcastle disease virus rNDV-VEGF-Trap containing the genome and a preparation method therefor, a DNA molecule encoding the recombinant Newcastle disease virus genome, and a use of the genome and the recombinant Newcastle disease virus in the preparation of a drug for treating cancer. The recombinant Newcastle disease virus provided by the present application relates to inserting a coding gene of VEGF-Trap into the genome of the recombinant Newcastle disease virus, such that the recombinant Newcastle disease virus obtained therefrom is replicated with a strong replication capability, thereby killing host cancer cells; moreover, the recombinant Newcastle disease virus has reliable safety for non-cancer cells, and shows improved anti-tumor effect and oncolytic efficiency.

Abstract: A recombinant Newcastle disease virus and a preparation method therefor, a recombinant plasmid, and use thereof. The recombinant Newcastle disease virus is obtained by replacing an F protein of a Newcastle disease virus lasota with an F protein of a Newcastle disease virus virulent strain. The recombinant chimeric virus has good safety and is capable of effectively inhibiting tumour cells, promoting tumour cell apoptosis, and effectively treating a tumour.