Objective: To understand the overall situations of medicinal resources at the 4th National Census of Traditional Chinese Medicine (TCM) Resources in Liaoning Province

in order to provide basis for reasonable development and utilization of TCM Resources. Method: The Census was conducted according to the technical scheme of the 4th National Census of TCM Resources. The survey method of representative area-sample area-quadrat set-quadrat was adopted for resources of wild medicinal plants. Six types of representative areas

namely grass

meadow

shrub

coniferous forest

broad-leaved forest and theropencedrymion

were selected in the survey. Result: Medicinal resources in 15 counties of 6 cities were surveyed. Approximately 10 000 medicinal plant samples were collected. This paper reports four newly recorded species

namely Pedicularis resupinata var. albiflora

Bupleurum sibiricum var. jeholense

Malva crispa

and Saussurea acromelaena

which belonged to 4 genuses in 4 families. Conclusion: This research paper reports four new species in Liaoning

in order to provide new materials for protection and rational utilization and development of wild medicinal resources in Liaoning.