According to the typical situation of deep hole in hard rocks and strong abrasive formations in some areas of Shandong, the design, development and improvement were made for impregnated diamond bit in raw material, formulation, mold and producing proceedings, and long-time and multi-level tests for bits were carried out. On the basis of the test data, the design parameters of the bit are determined, and a new type impregnated diamond bit suitable to deep hole drilling in hard rocks and strong abrasive formations has been developed.