Collection device and collection method of concrete pore solution

The invention discloses a collection device and a collection method of a concrete pore solution. The collection device of the concrete pore solution comprises a peristaltic gas guide control device, a degassing and pressure buffering device, a concrete pore solution squeezing device, a filter tip, filter paper, a collection bottle, a rubber tube and a connection guide pipe. The collection method of the concrete pore solution comprises the following steps: before squeezing a concrete test piece, starting the peristaltic gas guide control device so as to facilitate air to generate flowing circulation; removing carbon dioxide in air flow through the degassing and pressure buffering device; in a pore solution collection process, forming a pressure difference state that the filter tip has positive pressure and the collection bottle has negative pressure. According to the collection device and the collection method of the concrete pore solution, carbonization-free collection of the concrete pore solution is realized, and efficient collection of the concrete pore solution is realized through a structural design of the concrete pore solution squeezing device.