The 5th International conference on Agricultural and Biological Sciences (ABS 2019) will be held from July 22nd to 25th, 2019 in Macao Science Center, Macau. International Conference on Agricultural and Biological Sciences is convened annually to gather related eminent experts, researchers, students and delegates to exchange innovative ideas and experiences in the field of agricultural and biological sciences. Past ABS conferences ABS2015-ABS2018 were held successfully with the kindly support from scholars of famous institutions and organizations of more than 35 countries.