ABS (acrylonitrile butadiene styrene) resin composition with high melt strength and good appearance for blow molding

The invention discloses an ABS (acrylonitrile butadiene styrene) resin composition with high melt strength and good appearance for blow molding. The ABS resin composition comprises, by weight, 34.1-84.5% of ABS resin, 5-20% of grafting SAN (styrene-acrylonitrile) resin, 5-10% of rubber with terminated polybutadiene, 5-20% of heat-resistant agents and 0.5-1.5% of auxiliaries. The ABS resin composition has the advantages that branched polymers can be formed in an in-situ manner in extruding and granulating procedures, branched molecular chains and molecular chains of matrix resin are easy to entangle with one another, accordingly, the melt strength of ABS resin can be stably and effectively improved, prepared products are good in homogeneity, preparation processes are simple, and the ABS resin composition has low equipment requirements and is quite suitable for producing components such as spoilers of automobiles by means of blow molding.