The application relates to a gas-liquid two-phase flow parameter measurement method, a
measurement device, an apparatus, a
computer device, a storage medium and a
computer program product. The method comprises the following steps: if a measured value of
liquid phase superficial velocity is equal to a calculated value of the
liquid phase superficial velocity, then according to the calculated value of the
liquid phase superficial velocity, a preset void fraction, a distribution parameter and a
gas phase drift velocity, a P index is obtained, a calculated value of the void fraction and a calculated value of gas-liquid two-phase flow density are obtained, the initial value of the gas-liquid two-phase flow density is corrected according to the calculated value of the gas-liquid two-phase flow density, a corrected value of the gas-liquid two-phase flow density is obtained, if the deviation rate of the calculated value of the gas-liquid two-phase flow density and the corrected value of the gas-liquid two-phase flow density is less than a preset value, then according to the calculated value of the gas-liquid two-phase flow density, a measurement result of the gas-liquid two-phase flow is obtained, the calculated value and the corrected value of the gas-liquid two-phase flow density are compared, the density of the gas-liquid two-phase flow measurement is calibrated, and the measurement accuracy is improved.