The invention provides a gas-solid flow particle cluster multi-parameter simultaneous measurement method and device. The measurement device comprises a laser source unit and an optoelectronic signal acquisition and processing unit, the laser source unit comprises an even number of lasers and a laser controller, the lasers are used for irradiating particle clusters in a detection channel, the laser controller is used for controlling laser intensity of the lasers, the optoelectronic signal acquisition and processing unit comprises optoelectronic detectors, an optoelectronic signal acquisition unit and an optoelectronic signal processing unit, the number of the optoelectronic detectors is equal to that of the lasers, the optoelectronic signal acquisition unit and the optoelectronic signal processing unit are connected with the optoelectronic detectors, the optoelectronic detectors are used for converting laser intensity signals penetrating the detection channel into electric signals, the optoelectronic signal acquisition unit is used for converting the electric signals obtained by the optoelectronic detectors into laser intensity digital signals, and the optoelectronic signal processing unit is used for processing and analyzing the laser intensity digital signals acquired by the optoelectronic signal acquisition unit to obtain movement speeds, heights and volume concentrations of the particle clusters. The gas-solid flow particle cluster multi-parameter simultaneous measurement method and device is simple in measurement method and high in sensitivity.