From a profit point of view, the cost impact makes the gross profit margin of the industry underperform. The wire harness industry is a labor-intensive industry, and the cost of products is seriously affected by the price of raw materials such as copper, so the gross profit margin of companies in the industry is low. Under the negative impact of labor costs and raw material costs, the gross profit margin of the wire harness industry has shown a downward trend in recent years. From the perspective of the pattern, the wiring harness industry has stable cooperation with vehicle manufacturers, and the market concentration is relatively high.