The invention discloses a convenient sampling test tube including a test tube body. An opening is formed on the top of the test tube body. A rubber plug is embedded in the opening of the test tube body. A sampling spoon is fixedly connected vertically to the lower end of the rubber plug and includes a spoon handle and a spoon body which are integratedly connected and fixed. The spoon handle includes a fixed rod, which is vertically fixed to the lower end of the rubber plug, and a movable rod, which is telescopically arranged in the fixed handle. The spoon body is fixedly connected to the lower end of the movable rod. Volume scales are formed on the front end surface of the test tube body. Two antiskid pads are symmetrically disposed on two ends of the test tube body and are oppositely arranged on the centers of the two side end surfaces of the test tube body. By means of the structure, the test tube can be used for sampling by the built-in sampling spoon and is convenient and quick to use. The sampling test tube can adapt to sampling operations at different lengths.