The invention discloses multi-cavity multifunctional hollow glass comprises a first glass body and a second glass which are arranged in a spacing mode. Sealing fixing pieces are arranged around the first glass body and the second glass body and enable the space between the first glass body and the second glass body to form a sealed cavity. A plurality of triangular cavities are formed in the first glass body. A cross cavity is formed in the second glass body. A plurality of spacing strips are arranged in the sealed cavity at same intervals. A plurality of light-transmitting substrates are additionally arranged in the sealed cavity through the multiple spacing strips, and a plurality of sealed air chambers are formed between the multiple spacing strips and the multiple light-transmitting substrates. The multi-cavity multifunctional hollow glass is simple, light and convenient in structure. The conflict between heat insulation and passive solar energy heating of building glass in the prior art is solved, the characteristic of multifunctional using is met, the efficiency of passively utilizing solar energy of a building is improved, and the actual using requirements are met.