Objective To analysis of multiple myeloma (MM) and non-MM patients with the same clinical manifestations but significant differences in laboratory findings at the first visit to the Emergency Medicine Department suggesting that patient should be rule out the possibilities of suffering from MM by the attending physicians engaging in a specialty other than hematology as soon as possible to avoid misdiagnosis of MM.Methods Retrospective analysis of clinical features of MM cases from February 2013 to December 2016.Patients with renal dysfunction (serum creatinine ≥ 177 mmol/L),infection,bone pain and anemia were divided into four groups.The non-MM patients with the same clinical symptoms were enrolled as control group.SPSS22.0 and Medcalce 15.10 software were used for analyzing the distinct difference and diagnostic validity of routine laboratory tests in patients with MM and non-MM.Results ①The patients with serum creatinine≥ 177 mmol/L,and unexplained renal insufficiency with blood Ca2+ ＞ 2.39mmol/L,ALB ≤ 30.31 g/L and Hb≤84 g/L should be investigated the possibility of MM.②The patient with poor response to the conventional treatment and unexplained infection with IgM ＜0.42 g/L and ALB≤32.7 g/L or ESR ＞ 82 mm/h and Hb ＜ 100 g/L should be investigated the possibility of MM.③The male patients with the first symptom in bone and joint pain associated with bone damage with urinary protein and blood,and the emergence of Ca2+ ＞ 2.39 mmol/L,ALB ＜ 37.5 g/L,Hb ＜ 104 g/L and TT ＞ 19.8 s were suggested to detect MM.④The poor respose to conventional treatment,unexplained anemia (Hb≤90 g/L),IgM ＜ 0.51 g/L,ALB ＜ 34.1 g/L and GLB ＞ 46.4 g/L suggested to detect MM.Conclusions On the basis of symptoms such as renal insufficiency,infection,bone pain,anemia,routine blood laboratory findings of high calcium,low IgM,low albumin,and high globulin,it was recommended that bone marrow biopsy be made to detect MM.