Hollow corn stalk brick building block and preparation method thereof

The invention provides a hollow corn stalk brick building block. The hollow corn stalk brick building block comprises the following raw materials: 50-75wt% of corn stalks, 0.5-5wt% of a modifier, 15-35wt% of cement, 0.1-3wt% of a quick-drying agent and 5-20wt% of water. According to the hollow corn stalk brick building block, the corn stalks are taken as a raw material for preparing a building block, under the action of the modifier, the good interaction exists between each corn stalk and the cement, and a structure can be easily formed, so that the compression resistance and the water invasion property of the obtained hollow building block are improved; the obtained hollow corn stalk building block is applied to wall body buildings, so that a bearing structure, a thermal insulation structure and a maintenance structure of a wall body are completed by one step, the thermal insulation structure and the bearing structure are organically combined into a whole, the service life of the bearing structure and the service life of the thermal insulation structure are the same, and both the bearing and the thermal insulation are considered.