A new blue emitting 3-bromo-(3-chloropyridinyl)-N-[4-(3,6-ditertbutylcarbazolyl)phenyl]- pyrazole-5-carboxamide (compound 1) with D-π-A type was designed and synthesized by using 3-bromo-(3-chloropyridinyl)pyrazole-5-carbonyl chloride and 4-(3,6-ditertbutylcarbazolyl)aniline. Aggregation-induced emission (AIE) and photophysical properties of compound 1 were tested by UV-vis absorption spectrum, fluorescence emission spectra and dynamic light scattering. Based on density-functional theory calculation, compound 1 shows intramolecular charge transfer property, agreeing with its solvent effect. Quantum yield of the compound increased with molecular aggregation 〔Φ(DCM)=60.1%; Φ(powder) = 67.5%; Φ(crystal) = 70.2%〕. Notably, compound 1 exhibited good AIE properties with increasing water fraction in the mixture solution of acetonitrile and water. The maximum emission wavelength (λmax) of crystal compound 1 is 439 nm, which is blue emission. Compared with the crystal state, λmax of compound 1 in powder is redshifted by 17 nm. In addition, compound 1 can accurately detect latent fingerprints including the first level, the second level and even the third level, and also has a good recognition effect on the aged fingerprints.