A method of evaluating a smoke volume, comprising the following steps: (1) a determination step: using an electronic cigarette and determining the particle size distribution and number of aerosol particles in produced smoke, and determining the aerosol volumetric flow rate C and test time t; (2) data processing: defining graded diameters di of the aerosol particles according to the particle size distribution and number of aerosol particles, and calculating a mean concentration n of aerosol particles corresponding to di; (3) calculating the produced smoke volume according to a smoke volume calculation formula, wherein W is a smoke volume; ρ 0 is an assumed standard particle density of 1.0 g/cm3; t 0 is a test start time; and t 1 is a test end time.
