The invention discloses an SP type ICPT system load and mutual inductance identification method comprising steps: establishing an equivalent circuit of an SP type ICPT system, determining element parameters, and acquiring an effective value and resonant frequency omega of a resonant current Ip of a primary coil Lp, constituting an equation set according to a formula and calculating an equivalent load R and a mutual inductance M; Finally calculating a load RL, wherein the element parameters comprise Edc, Lp, Rp, Cp, Ls, Rs and Cs. The method of the invention is derived from a reflection impedance analysis and energy transmission equation, establishes an identification model of mutual inductance and load parameters; the system load and mutual inductance identification is realized by detecting the current frequency and effective value of a primary coil during stable operation without adding extra circuit; the calculation process is simple; data has a small error, high accuracy and high reliability.