Relating to the technical field of rapid detection of drugs, food and cosmetics, etc., the invention discloses an integrated rapid detection reaction tube, which comprises a sealing cover (1), a filter tube (2), a reaction tube (3) and a reaction reagent (4). The sealing cover (1) is disposed at the top of the reaction tube (3), the filter tube (2) is sleeved in the reaction tube (3), and a filter membrane is mounted at the bottom or circumference of the filter tube (2), or the filter tube (2) can be in the form of a hollow filter element. According to the characteristics of a sample dissolution reagent, the reaction tube (3), the filter tube (2) and the filter material are all made of acid-base or organic solvent resistant plastic or glass. The reaction reagent (4) is subpackaged into the reaction tube (3) in advance or freeze dried; or the reaction reagent (4) can be made into tablets or pills and then placed in the reaction tube (3). During practical use, the sample is placed in the filter tube (2), the dissolution reagent is added, then sealing, shaking, centrifugation and reaction are carried out, and the result can be observed directly. The integrated rapid detection reaction tube provided in the invention realizes integration of sample dissolution, filtration and reaction, and has the advantages of convenient use, high efficiency, strong practicability, and easy realization of standardization, thus being especially suitable for spot rapid detection of drugs, food and cosmetics.