Since bionic non-smooth theory is used in drilling field, bionic impregnated diamond bits have great advantages in improving drilling efficiency and prolonging lifespan and the bionic bits mainly depend on the bionic non-smooth arrangement of bit’s crown. The bionic non-smooth arrangement is made of several bionic elements; therefore according to circular arrangements of bionic elements, 13 different bits (including one common diamond bit) are designed and manufactured, each has different radial distance and circumferential distance. A series of experiments are conducted, it is showed that 2 bits (No.4 and No.11) have good performances which radial distances are 15d and 20d (the d is the diameter of bionic element) and circumferential distances are 30d and 35d. Compared to the common impregnated diamond bit, penetration rate and lifespan of No.4 are increased 16% and 100% and No.11 is increased 15% and 125%.