Different types of woodlands, which provide important ecosystem services for human beings, maintain the stable development of society and have positive effects on the protection of pollinators. In recent years, the diversity of pollinators has been greatly influenced by human activities, changes in climatic variables, invasion of alien species, and changes in land use. To study the status of species diversity of pollinators and plant communities in different types of woodlands (Quercus variabilis, Paulownia fortunei,and Populus spp.), 24 sampling points were selected in field margin systems in the hilly regions of western Henan. Yellow, white, and blue traps were deployed, and a mixture of approximately 200 mL of water and 1 drop of detergent was poured into the traps to capture pollinators. These data were combined with the characteristics of local plant communities to analyze the effects of different woodland type on the diversity of pollinators. We captured 8386 individuals of six orders and 83 families, mainly belonging to Hymenoptera, Diptera, Coleoptera, Lepidoptera, Hemiptera, and Thysanoptera, with a total of six pollinator functional groups. Hymenoptera, Diptera, Coleoptera, and Lepidoptera were selected as the four kinds of main pollinators to be analyzed. Results showed that the individual number and dominance of pollinators in Populus spp. were greater than those in P. fortunei and Q. variabilis, but the diversity of pollinators in P. fortunei was greater than that in Q. variabilis and Populus spp. In terms of individual abundance of pollinators, Q. variabilis differed significantly from P. fortunei (P < 0.05)and Populus spp. (P < 0.01), whereas P. fortunei did not differ from Populus spp. Non-metric multi-dimensional scaling (NMDS) and Analysis of similarities (ANOSIM) revealed that the composition of pollinator communities in Q. variabilis differed significantly from P. fortunei and Populus spp. (P < 0.05), whereas Q. variabilis did not vary substantially from Populus spp. Among the seven environmental variables studied, according to Redundancy analysis (RDA), coverage of trees and altitude were negatively related to the diversity of pollinators (P < 0.05). Altitude was significantly correlated with the first axis (r=0.3242, P < 0.05), indicating that the first axis was characterized by an elevation gradient, with the first axis increasing from left to right, and habitats changed from lower Populus spp. to higher Q. variabilis, and pollinator insects were mainly distributed in the middle to high-altitude areas. Coverage of trees (r=-0.5061, P < 0.05) was significantly correlated with the second axis, indicating that the second axis was characterized by coverage of trees increasing from top to bottom, and the transition was from the lower cover of Q. variabilis to that of Populus spp. The pollinators changed from Hymenoptera in lower tree coverage to Coleoptera in the higher tree coverage. The interference of human activities was not completely negative to pollinators, and pollinators had a positive response under moderate disturbance. Moreover, the diversity of pollinators was closely related to the surrounding environmental variables, including seasonal variation, vegetation characteristics, temperature, humidity, and human activities. The composition of pollinator communities in different woodland types varied, and the diversity of habitats and vegetation supported more food sources and habitats for the species; therefore, for the development of pollinator communities and improvement of ecosystem services in local areas, it is important to increase the protection of different types of woodland.