Abstract: Pyroxsulam, flucarbazone-Na, pinoxaden, tralkoxydim and clodinafop-propargyl are newly registered herbicides in China. A glasshouse experiment was conducted to evaluate the efficacy of these herbicides, compared with several commonly used herbicides, on four grass weed species in wheat fields. Key results were: 1) The acetolactate synthase (ALS) inhibiting herbicide pyroxsulam achieved 93.06% control on Poa annua and 82.82%-86.89% control on Puccinellia distans, Lolium multiflorum, Polypogon fugax (all herbicides applied at recommended field dose rates). 2) Other ALS inhibiting herbicides flucarbazone-Na and mesosulfuron-methyl achieved 61.27%-86.71% control on P. annua, but only 10.47%-29.43% control of P. distans, L. multiflorum and P. fugax. 3) In contrast, the acetyl coenzyme A carboxylase (ACCase) inhibiting herbicides pinoxaden, tralkoxydim and clodinafop-propargyl showed 85.41%-100.00% control on P. distans, L. multiflorum and P. fugax, and 19.08%-60.69% on P. annua. 4) The other ACCase inhibiting herbicide fenoxaprop-p-ethyl showed 99.60% control of P. fugax, 72.00% and 55.00% of P. distans and L. multiflorum, and 16.18% control of P. annua. 5) The plant photosystem Ⅱ inhibiting herbicide isoproturon also controlled P. annua, P. distans and P. fugax (88.15%-96.53% control), but showed poorer control of L. multiflorum (67.43%).