The objective of this work is to obtain thin films of perovskites for use as a cathode of SOFCs (Solid Oxide Fuel Cell) by suspension plasma spraying. This process consists in mechanically injecting a well dispersed stable suspension of micrometric particles in a direct current (dc) plasma jet. In the process, large suspension droplets (similar to300 mum) are divided into tiny ones (a few mum) by the plasma jet flow. Then the solvent is evaporated and the particles melt resulting in perovskite droplets of about 1 mum impacting on a substrate. Two types of suspensions were prepared. The first one contains an attrition-milled mixture of La2O3 and MnO2 powders (d(50) = 1 mum) and the second one an attrition-milled LaMnO3 perovskite powder (d(50) = 0.8 mum). The La2O3/MnO2 suspension has been injected with an arc current of 400 A and with a plasma forming gas Ar/H-2. In this case, a strong MnO2 evaporation takes place which hinders the perosvskite forming reaction in the plasma jet. The LaMnO3 perovskite suspension has been injected with an arc current of 300 A and three different plasma forming gases: Ar, Ar/H-2 and Ar/H-2/He. Satisfactory coatings of perovskite can be obtained with Ar. Other plasma forming gases result in perovskite decomposition.