In semi-arid area of Laizhou(Shandong province), fifteen lesimeters were used to study solute movement and balance on Shandong coastal saline soil under mariculture wasterwater irrigation. There are five treatments in this experiment, i.e, CK(non-irrigated) and the treatments of leaching fraction(LF) being 0.1, 0.2, 0.3 and 0.4. The results showed that, total desolved salts (TDS) at root zone for the treatments of leaching fraction being 0.1, 0.2, 0.3 and 0.4 increased by 89.78,92.35,96.10 and 102.85 g, respectively, when irrigated two times during the key developing stages of Helianthus tuberosus L. Some were leached blow the root zone and leaching proficiency reached 17.3%, 24.4%,31.1% and 36.8% respectively. After mariculture wastewater irrigation, nutrients such as nitrate, ammonium and reactive phosphorus, increased at root zone. Amounts of nutrients being retained at root zone were different due to the differences of the movement abilities among the three solutes. Nitrate was apt to leaching blow the root zone, however, ammonium and reactive phosphorus be retained. Additionally, heavy rain helped to leach the soluble salts out of the root zone, but the nutrients were also being leached.Therefore, we concluded using mariculture wastewater to irrigate salt-tolerant crop could increase soil nutrients, while the total desolved salts would not be excessively accumulated.