The invention discloses an electronic silica gel tank. The electronic silica gel tank comprises a first connecting tube connected with a transformer oil conservator, wherein the silica gel tank is arranged at the end part of the first connecting tube through a first hose mechanism in a connecting manner; the other end of the silica gel tank is connected with a second connecting tube through a second hose mechanism; the second connecting tube is connected with an oil storage tank of a transformer; the second connecting tube is provided with an electronic sealing valve; a dehumidifying pipeline is arranged on the upper part of the silica gel tank; the dehumidifying pipeline is provided with an electronic dehumidifying valve; the silica gel tank is arranged on a weighing mechanism; a heating mechanism and an image acquisition mechanism are arranged on the silica gel tank; and a control module is connected with a monitoring center through a communication module. The water absorbing capacity of the silica gel tank is monitored by weighing the silica gel tank, so that water absorbing efficiency of silica gel is ensured and safety of cooling oil is greatly guaranteed; and meanwhile, the silica gel in the silica gel tank is dehumidified by heating, so that free of replacement of the silica gel tank after installation is realized, thereby greatly relieving load of a working staff.