The paper contrasts and analyzes the visual light and near infrared-ray wave band spectrum
feature curves of crude oil,diesel oil and lubricate oil,which are obtained through the experiments,and
shows their spectrum features varying with the thickness,oil-water contrast rule and absorption feature
parameters.With the increase of the thickness,the reflection rate of diesel oil generally tends to increase,
while that of lubricate and curde oil decreases.The reflection rate of diesel oil is much higher than that of
sea water,while that of lubricate oil is higher than that of sea water in the blue-green band.The contrast of
the curde oil and water is the lowest in the blue-green wave band.It can help to determine oil film
thickness,discriminate oil film and sea water,and identify oil types,so that it may be available to monitor
sea oil spilling through satellite remote sensing method.