Abstract: According to conference papers of the 11th International rock blasting fragmentation，combined with the domestic research results in recent 3 years，research results are summarized from four aspects of theory of rock blasting fragmentation，block model and distribution function，rock blasting numerical calculation and rock block measurement technology.The research dynamics and foreign research trends in the field of blasting fragmentation are analyzed and discussed，and the results show that China has obvious advantages in the field of ore rock blasting theory research，and has innovation consciousness in the blasting fragmentation model and statistical function，but we have a long way to go in the aspect of numerical software and image automation and intelligent processing.The discussions in this paper aim to providing reference for our scientific research workers and technicians in the ore rock blasting fragmentation，utilization of explosive energy and high efficiency mining of ore rock.

Key words: Mining engineering, Rock fragmentation, Block size distribution, Block measurement