Aiming at the problem that in received signal strength indication（RSSI） positioning algorithms using the least squares method to calculate the coordinates of unknown nodes

the ranging error affects the fluctuation of positioning precision

flower pollination algorithm is prone to fall into local optimum

propose a RSSI localization algorithm based on improved flower pollination algorithm. Firstly

the flower pollination algorithm is improved from the pollen step weight and local variation. The improved pollination algorithm is then used to estimate the unknown node position. The simulation result shows that the proposed algorithm has higher positioning precision and better stability

suitable for scenes with high positioning precision and stability requirements.