Method and system for controlling charging of solar battery

The invention discloses a method and a system for controlling charging of a solar battery. The control method comprises the following steps of triggering a solar charger to enter the starting state; enabling the solar charger to acquire and process an electric energy signal of the solar battery; controlling the solar charger to charge for a load, and detecting the output voltage of the solar charger in real time; when the output voltage is greater than or equal to the preset first voltage threshold value, charging the load at the preset first charging current; when the output voltage is smaller than the preset first voltage threshold value, charging the load at the preset second charging current; detecting the charging current in real time; when the charging current is smaller than the preset cutoff current threshold value, controlling the solar charger to close output; triggering the solar charger to enter the standby state. The control method has the advantage that while the functions of the solar charger u