The utility model discloses an environment-friendly visual sample barrel. The environment-friendly visual sample barrel comprises a barrel body, a barrel cover, a barrel beam, an installation base, an inner sealing pad and a sample barrel cap, a transparent window and a sample label frame are arranged on the barrel body, the transparent window is provided with scales and reading numbers, the barrel beam is hinged to the barrel body through the installation base, the barrel cover is in screwed connection with the barrel body, the barrel cover and the barrel body are sealed through the inner sealing pad, a sampling opening is formed in the upper portion of the barrel cover and provided with threads, and the sampling opening is in screwed connection with the sample barrel cap. As the barrel cover is additionally provided with the sample barrel cap allowing a sampling bend to be directly put in, a contamination accident caused by crude oil spilling caused when the amount of casing head gas is large or it is windy is avoided in the sampling process; the inner sealing pad between the barrel cover and the barrel body can effectively seal the sampling barrel, and it is prevented that crude oil leaks and contaminates the environment in the inspection process of the sample barrel; the barrel body is provided with the transparent window with the scales and the reading numbers, so that in the sampling process of the sample barrel, a sampling person clearly observes the sampling amount, and the defect that the sampling amount is not convenient to observe due to a closed design is eliminated.