The invention discloses a kit for detecting a related immunophenotyping of B-cell acute lymphoblastic leukemia and forms classification equipment of a related immunophenotyping of leukemia with a seven-color flow cytometry. The kit is configured with the following monoclonal antibody reagent combinations: CD58, CD10, CD34, CD123, CD38, CD19 and CD45, and fluorescein is respectively marked according to front and back sequences as follows: FITC (fluorescein isothiocyanate), PE (pulmonary embolism), PerCP-CY5,5, PE-CY7 (phycoerythrin-CY7), APC (adenomatous polyposis coli), APC-Cy7 and PacificBlue. With the adoption of the kit disclosed by the invention, whether the seven marks are normal or not can be simultaneously observed, and the sensitivity and the accuracy of the detection are increased; further, immunophenotyping information in morbidity can not be relied on, so that the range and capacity of the LAIP (leukemia associated immunophenotyping) analysis are expanded, the early-stage conditions of the analysis are simplified, and more chances are provided for clinical detection of MRD (minimal residual disease).