The utility model discloses an engine cylinder. The engine cylinder comprises a cylinder body and a cylinder cover, an oil filter base for installing an oil filter is arranged on the cylinder cover, an oil inlet and an oil outlet are disposed on the oil filter base, the oil inlet is communicated with an oil inlet end of the oil filter, the oil outlet is communicated with an oil outlet end of the oil filter, an oil inlet channel and an oil outlet channel are disposed on the cylinder body, the oil inlet channel is communicated with the oil inlet, and the oil outlet channel is communicated with the oil outlet. According to the engine cylinder, after the oil filter base is arranged on the cylinder cover, the oil filter can be installed on the cylinder cover; the cylinder cover is located on the upper portion of an engine structure, so that the maintenance is convenient; the oil filter is adjacent to components on the cylinder cover, so that the requirement of the components for rapid oil supply can be met; the oil inlet and the oil outlet are mounted on the oil filter base, so that overmany pipelines for connecting on the cylinder cover can be avoided; and the oil inlet channel and the oil outlet channel are disposed on the cylinder body, so that the arrangement of the cylinder body and the cylinder cover is concise. The engine cylinder is suitable for various automobile engines.