ABSTRACT: Objective To evaluate the performance of field operation clinical laboratory equipment AC-910 EO+. Methods According to the standards of NCCLS EP9-A files, the four principal indexes of WBC, RBC, HGB and PLT in 40 patients were detected by haemocyte analyzer AC- 910EO+ and XN-2000 used as reference analyzer respectively. Results There was good correlation between the two analyzers on WBC, RBC and HGB detection. The expected bias of the results at the points of medical science determination levels were accord with the standard of CLIA，88, and acceptable by clinic. The bad results on PLT analysis between two analyzer were obtained and the expected bias of the results at the points of medical science determination levels was not acceptable by clinic. Conclusion The field operation clinical laboratory equipment AC-910 EO+ might be able to ensure field operation for public health mission, but the result of PLT should be analyzed objectively and used as a clinical reference only.