In order to analyze the influence of experiment conditions on the imaging of the microbubbles across the supercavitation layer,the microbubbles with micron diameter across a simulated supercavitation layer are detected and imaged in different experimental conditions,and the obtained images are processed.Through comparing theoretical value and calculated value of bubble population density,the imaging effect is judged.The result shows,when the detection angle is 90°,the images of the bubbles is clearest.The bubbles with smaller diameter have the higher sensitivity towards current.The clear imaging number of bubbles is more with the increase of the current,but become saturated when the current reaches a certain degree.After adding disturbance,it is found that the influence of disturbance on the identifiable bubble number is more obviously when bubble density is bigger.