Abstract: A housing for an electronic sprinkler controller and the electronic sprinkler controller are disclosed. The electronic sprinkler controller has a first circuit board and a terminal block electrically connected with the first circuit board. The housing includes a back cover, a first front cover attached to the back cover to cover the first circuit board, a terminal block cover, a first seal and a second seal. The first circuit board is disposed on the back cover. The first front cover has an opening to expose the terminal block. The terminal block cover is rotatable between a closed position covering the opening and the terminal block and an open position not covering the opening and the terminal block. The first seal is disposed between the back cover and the front cover, and the second seal is disposed between the front cover and the terminal block cover.