This paper analyzes the relationship among international collaboration, number of papers and number of citations from an economic perspective. It analyzes the number of international collaboration papers and their citations according to different international economic collaboration types, the number of countries at different economic levels, and the economic situations of first or corresponding authors. This study analyzes international collaboration papers listed in Web of Science from 2011 to 2015, published in the field of Public, Environmental and Occupational Health. According to different international collaboration types, results show that the subset of international collaboration with the same economic level accounts for the highest percentage, especially the type of H&H, and there are significant differences in average citations among different collaboration types, the type of H&M&L has the highest value (11.21 ± 15.72). According to the number of countries at different economic levels, results show that papers published by ≥ 3 countries account for the highest percentage most of the time in different collaboration types. In general, there are positive correlations between the number of countries and citations, but there are no significant differences according to the number of low income countries in different types except H&M&L. According to economic situations of first or corresponding authors, results show that papers initiated by high income countries always account for the highest percentage over past 5 years, and there are positive correlations between the economic situations of first or corresponding authors and citations in different types except H&M. (H: high income countries, M: middle income countries, L: low income countries).