A chemiluminescent aerosol product comprising: a double-structure container having a propellant filling space and two independent liquid concentrate filling spaces, and provided with a discharging mechanism for simultaneously discharging contents filled in the two liquid concentrate filling spaces, wherein the propellant filling space in the double-structure container is filled with a propellant composed of a compressed gas, a first liquid concentrate filling space of the liquid concentrate filling spaces in the double-structure container is filled with a first liquid concentrate composition, and a second liquid concentrate filling space of the liquid concentrate filling spaces in the double-structure container is filled with a second liquid concentrate composition, the first liquid concentrate composition contains an oxalic acid ester, a fluorescent substance and a thickener, and has a viscosity of 10,000 to 200,000 mPa·s at a temperature of 20°C, the second liquid concentrate composition contains hydrogen peroxide, a hydrogen peroxide decomposition catalyst and a thickener, and has a viscosity of 10,000 to 200,000 mPa·s at a temperature of 20°C, the discharging mechanism includes a mixture discharging member having mixing means for mixing the first liquid concentrate composition from the first liquid concentrate filling space and the second liquid concentrate composition from the second liquid concentrate filling space, and the first liquid concentrate composition and the second liquid concentrate composition are mixed to form a chemiluminescent composition, characterized in that the thickener in the first liquid concentrate composition and the thickener in the second liquid concentrate composition are a fumed silica. a double-structure container having a propellant filling space and two independent liquid concentrate filling spaces, and provided with a discharging mechanism for simultaneously discharging contents filled in the two liquid concentrate filling spaces, wherein the propellant filling space in the double-structure container is filled with a propellant composed of a compressed gas, a first liquid concentrate filling space of the liquid concentrate filling spaces in the double-structure container is filled with a first liquid concentrate composition, and a second liquid concentrate filling space of the liquid concentrate filling spaces in the double-structure container is filled with a second liquid concentrate composition, the first liquid concentrate composition contains an oxalic acid ester, a fluorescent substance and a thickener, and has a viscosity of 10,000 to 200,000 mPa·s at a temperature of 20°C, the second liquid concentrate composition contains hydrogen peroxide, a hydrogen peroxide decomposition catalyst and a thickener, and has a viscosity of 10,000 to 200,000 mPa·s at a temperature of 20°C, the discharging mechanism includes a mixture discharging member having mixing means for mixing the first liquid concentrate composition from the first liquid concentrate filling space and the second liquid concentrate composition from the second liquid concentrate filling space, and the first liquid concentrate composition and the second liquid concentrate composition are mixed to form a chemiluminescent composition, characterized in that the thickener in the first liquid concentrate composition and the thickener in the second liquid concentrate composition are a fumed silica.