CH₃NH₃PbX₃ (X = I, Br and Cl) crystals have been successfully synthesized via a facile solvothermal method with different acids as halogen sources. Reaction conditions including concentration of the precursor, reacting temperature, time, and halogen sources, have been investigated. The results showed that CH₃NH₃PbI₃ crystals exhibit tetragonal phase and the crystals change from normal cuboids to concave-faced cuboids by different reaction conditions. The CH₃NH₃PbBr₃ and CH₃NH₃PbCl₃ crystals show cubic phase structure and normal cuboid. Moreover, the photoluminescence spectra of CH₃NH₃PbX₃ (X = I, Br and Cl) crystals obtained with different halogen sources also were discussed in detail.