Trickle irrigation pipeline system

A trickle irrigation pipeline system comprises a main pipe connected with a water source, and a branch pipe connected with the main pipe. The branch pipe comprises a plurality of irrigation points which are distributed around an irrigation object. According to the trickle irrigation pipeline system, through the annular branch pipe, the irrigation points on the branch pipe can tightly encircle a fruit tree, and the fruit tree is preferably located in the branch pipe, so excursion of a trickle irrigation pipeline is avoided; and the plurality of irrigation points are distributed around the fruit tree, the same fruit tree can be irrigated from different directions simultaneously, the condition that irrigation is not timely and inadequate is avoided, and probability that the fruit tree cannot be irrigated due to blocking of a trickling head is also greatly reduced at the same time.