The invention relates to quick, sensitive and convenient six-in-one test paper for quickly detecting heavy metal residues. The test paper comprises six heavy metal indicators of mercury, cadmium, plumbum, copper, chromium and nickel, and belongs to the field of monitoring of food, the environment and water quality. The test paper comprises two parts namely a paper base and color rendering paper, and is simple in structure and easy to operate; chromatographic filter paper with the thickness of 3 mm is adopted as a carrier, so that the test paper can quickly detect the contents of the six heavy metals, namely, mercury, cadmium, plumbum, copper, chromium and nickel, in food, the environment and water quality within 1-3 min; an accurate quantitive detection conclusion can be obtained depending on visual observation, so that no expensive device is used for displaying the conclusion, and a user can master the operation without specialized training; moreover, the test paper is cheap, low in production cost and single-use, needs no inspection and maintenance, is high in accuracy, good in repeatability, and very suitable for on-site real-time and quick detection and monitoring.