Objective:To translate Fear of Progression Questionnaire (FoP-Q) into Chinese and test its reliability and validity.Methods:After translation, back translation and cultural adaptation, the items of the simplified Chinese version of FoP-Q were determined. Using the convenient sampling method, a total of 269 patients with hematological malignancies from two Class Ⅲ Grade A hospitals in Beijing were selected as the research objects from August to December 2020. The general information questionnaire and the simplified Chinese version of FoP-Q were used to investigate the patients. Exploratory factor analysis was used to evaluate the structural validity of the simplified Chinese version of FoP-Q. Cronbach 's α coefficient and half-fold reliability coefficient were used to evaluate the reliability of the scale. Pearson correlation analysis method was used to analyze the correlation between each dimension and between each dimension and the total scale. A total of 269 questionnaires were distributed, and 256 valid questionnaires were returned. The effective response rate was 95.167% (256/269) . Results:The simplified Chinese version of FoP-Q extracted 5 factors through factor analysis, with a total of 41 items, and the cumulative variance contribution rate was 64.201%. The content validity index of each item of the scale was 0.857-1.000, the Kappa value was 0.850-1.000, the content validity index of the overall consistency scale was 0.814 and the content validity index of the average scale was 0.973. The total Cronbach 's α coefficient of the scale was 0.969, and the Cronbach 's α coefficient of the five factors was 0.815-0.941. The half-fold reliability coefficient of the total scale was 0.955. Conclusions:The simplified Chinese version of Fear of Progression Questionnaire has good reliability and validity, which can be used to evaluate the degree of fear of disease progression in patients with malignant tumors in China