Resonant lidar detection of neutral (Ca-423 nm) and ionized (Ca+-393 nm) calcium altitude distributions has been performed during nighttime at the Observatoire de Haute-Provence. The emitter is composed of two Nd-Yag pumped due lasers, the 393 nm emission being obtained by three waves mixing in a non-linear crystal. The first detection of Ca has been carried out in December, 1982 and has shown that the integrated abundance of the atomi form is low, with a value of about 1.5¿107 cm-2, further confirmed by measurement performed in July, 1983. During this same month, the detection of Ca+ has been achieved, proving the lidar ability to follow rapid evolution of Ca+ layers, which appear between 85 and 115 km altitudes.