With the help of these investigations, the honeybees distribution boundaries “Apis mellifera”, the farthest eastern border of which had been reported to be as far as Sistan and Baluchestan is now shifted to Tajikistan. A morphologic analysis carried out on Tajiki’s bees in contrast with the other breeds reveals the distinction between Tajiki’s bees with the other subspecies. This distinction can be traced back in the climatic impact of the distribution area of these bees. In this research it was determined that bees of Tajikistan have closer relations with the subspecies of meda of Iran and honeybees of Turkmenistan than with any other subspecies. Quite extensive natural boundaries, high mountain ranges, outstretched plains and deserts and a distinct climatic difference within a wide geographical distribution of subspecies of Meda have brought about an outstanding variation in their appearance inside the population of Meda in various regions as far as the environment is concerned. These changes are made to the extent that some independent ecological and geographical races were the result, as has been certified in the experimental observations carried out on Tajiki bees “Apis mellifera tajica.