This study attempts to identify and evaluate the types of failures in Tabas coal mine shearer picks. For this purpose, 33 damaged picks were transferred to Isfahan University of Technology Laboratory for macroscopic and microscopic studies. Macroscopic studies include evaluating the weight changes of the picks versus the new pick, evaluating the geometric changes of the picks using 3D laser scanning, and evaluating the appearance of the picks. Finally, macroscopic studies show that 55% of pick failures are abrasive wear. 40% of the failures are due to breakage or falling of the pick carbide tip, which in turn results in severe wear of the pick body due to over-bearing capacity. 5% of the damage will also be due to the thinning of the pick body, which can be caused by an increase in the temperature of the pick body. Microscopic studies also include the study of the surface of the picks using light microscopy and scanning electron microscopy which are used to identify pick microscopic injuries. The results of these studies led to the identification of four major failures of coal penetration into the pick composition, cracking and crushing of the pick bodies, formation of scratches and deep cracks in the surface of the picks and eventually formation of rock channels. (Stone effect) on the surface of the picks. The results of these studies generally indicate the weakness of the geometric structure of the picks and the design of the pick placement on the drum as well as the low hardness of the pick body which can be revised by the geometric design of the picks. And picks, as well as hard coatings on the pick body, significantly reduced these pick breakdowns, and subsequently reduced the stoppage of pick breakdown operations. The second phase is the study of the application of hard and wear-resistant coatings on the picks and their performance evaluation. For this purpose, 10 picks were coated by heat treatment and 10 by laser and their diameter changes were studied. Studies show that laser coatings perform better than non-coated picks and extend the life of the pick up to two times, but thermal coatings do not perform well because of the lack of coating. Suitable for pores and weaknesses in the coating.