ObjectiveTo analyze the clinical manifestations and laboratory test results of 357 cases of first-diagnosed systemic lupus erythematosus (SLE), and provide a reference for SLE diagnosis. MethodsA total of 357 SLE patients on their first diagnosis were collected from 2008 to 2012 in our hospital, and the clinical manifestations and laboratory findings of these patients were recorded and analyzed. ResultsAll the patients had different clinical manifestations and serious multi-system damages. In these patients, there were 59.1% (211 cases) involved with arthritis, followed by rash and kidney damage. The complement declined in 75.9% of the patients according to the results of immunological tests. In the ENA spectrum inspection, anti-SSA antibody had the highest positive rate (51.3%), followed by anti-u1RNP antibody (44.0%), anti-dsDNA antibody and anti-nucleosome antibody. The first onset of most clinical manifestations was rash (43.4%), followed by arthritis and lower extremity edema; a few patients had headache or numbness as the first symptom. ConclusionSLE patients have diverse clinical manifestations, serious multi-system damages and outstanding heterogeneity, which is inconsistent with foreign reports.