The invention relates to a pure-electric crank-type overhead working truck and a control method thereof. The crank-type overhead working truck adopts a power management module as a driving energy source. Through diversified electric energy sources, the problem of petroleum energy crisis is solved; through adoption of clean electric energy, the problems of environmental pollution and exhaust emission are solved; electric motors are adopted for driving, so that the problem of the noise pollution of conventional engines is solved; and electricity is adopted for driving, so that the problem of theleakage of hydraulic oil in a hydraulic system is solved.