The invention relates to a surface-modified beta nucleating agent for polypropylene, and a beta polypropylene pipe material produced by using same. A surface modifier of the beta nucleating agent can be one or more of a silane coupling agent, titanate coupling agents and self-assembly surface modifiers (such as octadecyltrichlorosilane OTS), and the using amount of the modifier is 0.1 to 10 percent of the mass of the nucleating agent. The beta nucleating agent for polypropylene can be one or more of aromatic amide compounds, C4-C28 carboxylate compounds of rare-earth element, organic dibasic acid, inorganic salt or inorganic oxide. The beta polypropylene pipe special material manufactured by using the surface-modified beta nucleating agent for polypropylene has the relative beta-crystal content of 83.6 to 86.8 percent and the Izod notch impact strength at 23DEG C of 76 to 90kJ/m<2>. The invention discloses a preparation method for the surface-modified beta nucleating agent for polypropylene.