The invention is a liquid supply control device.It includes: a first container,Having a bottom surface and at least one side wall,The first holding space is formed by the combination of the bottom surface and the side wall.To hold a liquid；A second container,Having a top surface and at least one side wall,And a second holding space is formed by the combination of the top surface and the side wall.A liquid injection port and a gas exhalation port are provided on the top surface.The liquid injection port is used for a liquid supply unit to deliver the liquid to the second holding space through a pipeline.And a first stop is provided outside the air outlet.And at least one circulation hole is provided on the sidewall,And the bottom of the sidewall is fixed on the bottom surface of the first container to be provided in the first holding space；And a floating body,Set in the second holding space,And the top of the floating body is provided with a second stop.It is a device that can automatically replenish liquid when the available liquid quantity is reduced to a certain extent.本創作為一種液體供量控制裝置，其包括：一第一容器，具有一底面及至少一側壁，並藉由該底面及該側壁之結合形成第一容置空間，係用以盛裝一液體；一第二容器，具有一頂面及至少一側壁，並藉由該頂面及該側壁之結合形成第二容置空間，於該頂面開設有一液體注入口及一氣體呼出口，該液體注入口係供一液體供應單元將該液體透過一管路送至該第二容置空間，且於該氣體呼出口外設有第一止擋件，而於該側壁開設有至少一流通孔，且該側壁之底部係固定於該第一容器之底面以設置於該第一容置空間；以及一浮體，設置於該第二容置空間，且該浮體之頂部設有第二止擋件，是一種能夠當可取用的液體量減少至一定程度而能自動補充液體之裝置。
